Theme hint: Usually the theme, once you get the hang of it, is a big help solving the puzzle. This time I had to go a long way before the theme became clear. The title, usually a big help to figure out the theme, didn’t help much. The first thing to be aware of is that 27-Across and 95-Across are both “key” clues, meaning that they give a hint at what’s going on with the theme. If you can get either of those by the down clue/answers that cross them, especially 95-Across, it can unlock the mystery of the theme. The other thing to notice is all the clues that are just dashes. Sometimes this just means “un-clued” (this was true a couple weeks ago) but that’s not really the case here. Meanwhile, solve away at the non-theme answers. Remember my hint that, if an answer doesn’t fit, it’s probably a rebus — well, forget that hint this time! One more thing, the normal rule that a long answer = theme answer also doesn’t hold true here.
79-Across – Ocean menace: Not an ORCA this time, though probably orcas and these guys get together at thanksgiving! Just be sure that you’re not the main dish!
109-Across – Not a reduction, abbr.: Think photograph
78-Across – Eponym of Warsaw’s airport: Know your Poles? Hum a few bars and the name of the person who gave his name to this airport might come to you.
65-Down – Go pfft, with “out”: Well, I wanted CRAP (out) but that didn’t work. Think car engine.
61-Down – It’s caught by a stick on a field: Well, not really the stick, but something that’s stuck to the stick
83-Down – Bishop’s place: Think Holy See, not chessboard
67-Across – Met one’s potential: Especially true if you happen to be a flower.
35-Down – Amphibious rodent: I had no idea there were varieties of these varmints that were amphibious. Ick, yuck, or, the answer to 19-Across (which could almost be a direction on a compass, btw)