Thanks magpie (and others) - that makes 3 new words for me arising from this crossword.
The other two?
- the answer to 11d Cryptograms confused a posh gangster (13) ... it was one of the few I was completely stumped by, and an anagram solver site revealed the answer
- a word (you'll see) in the clue for 17a Still square and homosocial essentially. I have the answer, but not the parse.
So, once again, a learning opportunity for me!