Chucked forcefully in modern lingo / TUE 10-11-22 / French loaf baked in a rectangular mold / Kara Zor-El's identity in DC Comics / Kind of fitness test for K-12 students / 2021 Pixar film set on the Italian Riviera / Spinoff clothing store for children / Yoshi of Mario games is one for short

Constructor: Ailee Yoshida

Relative difficulty: Medium+ (on the tough side for a Tuesday)

THEME: SUPERGIRL (62A: Kara Zor-El's identity in DC Comics ... or a punny hint to the answers to the starred clues)— answers follow the pattern: [word meaning "super"] + ["girl"'s name]"

Theme answers:

• GOOD FAITH (17A: *Sincere intentions)
• ROCKIN' ROBIN (25A: *One who's "Hoppin' and a-boppin' and a singin' his song," in a 1958 hit)
• STAR / LILY (38A: *With 39-Across, flower named for its distinctive shape)
• PRETTY PENNY (51A: *Considerable amount of money, in an idiom)

Word of the Day: TERRINE (12D: French loaf baked in a rectangular mold) —

A terrine (French pronunciation: ​[tɛ.ʁin]), in traditional French cuisine, is a loaf of forcemeat or aspic, similar to a pâté, that is cooked in a covered pottery mold (also called a terrine) in a bain-marie. Modern terrines do not necessarily contain meat or animal fat, but still contain meat-like textures and fat substitutes, such as mushrooms and pureed fruits or vegetables high in pectin. They may also be cooked in a wide variety of non-pottery terrine moulds, such as stainless steel, aluminium, enameled cast iron, and ovenproof plastic.

Terrines are usually served cold or at room temperature. Most terrines contain a large amount of fat, although it is often not the main ingredient, and pork; many terrines are made with typical game meat, such as pheasant and hare. In the past, terrines were under the province of professional charcutiers, along with sausages, pâtés, galantines, and confit. Less commonly, a terrine may be another food cooked or served in the cooking dish called a 'terrine'. (wikipedia)

The bad part of this puzzle is the NE, and by "bad" I mean, "badly edited." First of all, TERRINE is a really, really hard word for a Tuesday. Despite its incredibly useful letters, the word has appeared only three other times in the Shortz era, and never before Thursday. It's a specialty word. I've actually heard it before, but (and here's where the editing comes in, for sure), I couldn't get to the word because "loaf" is such a strong evoker of bread that all I was thinking about was bread. After I finally got it from crosses, I was like "wow I thought TERRINE was a savory meaty aspicy thingie..." And it is. It is, yes, technically a "loaf," but yeesh. The word is already relatively obscure (I said "relatively!") for a Tuesday; trying to make it further inaccessible with a bread-looking clue does not feel like a sporting thing to do. Again, it is Tuesday. Which brings me to the other, far more bizarre editing call in the NE—that clue on PACER (9D: Kind of fitness test for K-12 students). What ... in the ... what? What is that? I'm ... well, old, and I've had a kid recently go through the K-12 system, and today, right now, is the first I'm hearing of whatever this is. In my experience, PACER = [Indiana hoopster] or ... maybe a bygone car of some kind (?) (aw yeah, the AMC PACER! What a looker!). Also, one who paces, presumably. From my perspective, as clued, PACER was a succession of arbitrary letters. So throw the bizarre (for me, brutal) PACER clue into a corner that's already got a toughly-clued TERRINE in it, and yeah, that's a lot more strange roughness than I ever want to see in a Tuesday corner, or any corner. I pity the solver who did not know that miso was a "PASTE" (also, not the easiest clue) (9A: Miso, for one). That corner was needlessly made much more inaccessible than it should've been. Completely out of keeping with the rest of the grid, and the general good vibes of the rest of the puzzle.