Cryptic 5x5 #1 by tuber

I always quite enjoy cluing three-letter words, I don't know why; and despite the fact that it has no sensible surface reading, I like 4A. 3D is something of an homage to Private Eye's Cyclops, whose clues can get a bit saucy. Solvers seemed to like it, but looking back, this puzzle has a few things I'm not keen on: I was never happy with 8A, 1D strikes me as awkward, and 2D is fine but rather perfunctory. I'm my own worst critic by a long way, though, so give it a try and let me know what you think.