Thanks NAC and calibax.
I apologize to those who are trying to help and do not know what the puzzle is all about.
I had seen an earlier set of questions so I assumed helpers are familiar with the theme.
Some clues have just word play.
22d is unclued.
Sometimes the preamble is hard to describe in a sentence or two.
The first letter in 22 is VERY significant, revealing . Just look at the thematic answers you have and see what could link them - the coat hangers, the nine-letter across answer near the top (I've no longer got my copy)...
I'm glad about that, Hankir. I didn't want to be unhelpful, but I didn't want to spoil the moment where you'd spot what was happening! It was quite clever, I think.