Hairstyle that's short on the sides / SAT 10-3-20 / Larva of dragonfly named after Greek myth / Sauce ingredient in Londoner's pie mash / Neighbor of Belarusian / Chemical compounds in bubble gum

Constructor: Brad Wilber and Doug Peterson

Relative difficulty: Easy (well, 3/4 easy for me, and then a bit of a freefall in the NE that was largely stupidity-driven, so I'm just gonna call it Easy overall)

THEME: none 

Word of the Day: TARN (42A: Alpine lake) —

: a small steep-banked mountain lake or pool (merriam-webster.com)

Really enjoyed this one, despite its faint patina of crosswordese (INES SST RAE LETT SETTO DAH OLEG OLES etc). The long answers really hold up—nothing particularly current or flashy, but solid winners nonetheless. Seriously, all the groupings of longer answers are truly fine. And it's worth noting, or confessing, that even though excessive crosswordese bugs me, it's often what gives me my toeholds in tough puzzles, so maybe I should be a little nicer to it. You know, here and there. Not too nice. It's just that the overfamiliar stuff, if doled out in moderation, can be a big help. I mean, I got started by going SOPS SST LETT, not the prettiest combo, but then that opened up SILK BOXERS "ONE FINE DAY"and PET CARRIER, so I mostly forgot about the first few words I put in the grid. Do people really pay a lot of money for SILK BOXERS? Huh. Live and learn. It was definitely a quick solve that went predominantly counterclockwise, starting in the NW and ending up in the NE, and it was in the NE that the wheels came totally off my speedsolvingmobile. If I could eliminate Morse code units from all future puzzles, boy would I? DITs and DAHs ... Gah! Anyway, [T as in telegraph?] just didn't register for me—if it had, I likely would've seen THE CITADEL much sooner (12D: South Carolina college). I had CARPS for CRABS, which was probably the most fatal mistake I made in that quadrant (34A: Kvetches). I really think my answer fits the clue better, and I had the "C" and the "S," so I was reluctant to doubt it. Wanted SNOOTY at 30A: Nose-in-the-air, but then when it didn't work well with CARPS, I doubted SNOOTY, not CARPS, ugh. Thought maybe SNOBBY (?). Again ugh. The biggest ugh, though, was actually having the "IC-" at 21A: Something hanging near Christmas lights and ... coming up with nothing. In retrospect, that seems impossible. I think at that point I was doubting so much, I started to doubt that "C" (from CROCK). But I even tried ICE-something at one point. It's true that the clue is kinda stretching the meaning of "near," but still, ICICLE should've been close to instant with that "IC-" in place, and I just blanked. Embarrassing.