The usual Azed, where the wordplay is so precise that you can often be pretty sure of the answers without knowing the words. I solved most of this when away for the weekend and came home with many unknown words written by the clues but not yet in the grid, ready for me to look them up in Chambers.
I thought that 19dn was very good, but my godson had a point when he opined that the ‘e.g.’ takes away from the surface reading. However, Azed (but not all setters, including some in The Times) clearly abhors a definition by example. And rightly so in my opinion.
Definitions in italics.