Hi PS
I too had to look up Terpsichorean.
Chrise, I had a lovely holiday on Guernsey too. My main memory was walking along the beach on Herm so we could avoid the tractors. At one stage we were doing Islands.
Brendan, Thanks for your hints I'd already got 16d and had a chuckle, I've just got one left now. which is 5d. Is the definition a drawer (artist)? I have C?A?L?, but I'm not sure of the L from 12 across as I can't parse all of it. So a hint for 5d please and if my L is wrong a hint for 12ac
PS I manage to grow Echiums here in Devon now.