I have a completed grid but the parse for 17a eludes me.
The definition is clear, as is “one”, and there some words for the “falconer’s charge” which are close to the rest but they need other letters… I think…
hmm
The clue is defective It's one of the many variants of a word for "hawk" with the last letter changed from "l" to "t" but the clue doesn't explain why.
Does anybody know why the answer to 19 across has anything to do with "Carmen" (possibly " car men"?)?
I'm not sure I understand your point - Chambers gives the solution as the feminine form of a term for a Romany, and Carmen is a feminine Romany, probably the only one that I could confidently name.