On reflection aristo I feel one of the question marks may lie with the clue at 23d)
I had it in my mind that the
'Porky's' sign (from the American 80's comedy film) was a PINK neon sign but now I've checked it out properly, I see it's actually a shade of ORANGE so the clue doesn't quite work.
If you read the clue and imagine the sign is PINK, then it will work.
For anyone who doesn't see what I'm getting at, the clue reads:
Slightly left of the
r in
Porky's?
Slightly left = Pinko = Def
Slightly left of the r in P[o]rky's is the pink (but really a shade of orange) o
NB: This does not affect the clue at 24d in any way
Oh well, it would have been such a good clue if it had worked out right