Hot meal is high point when in Channel Islands (6)
I believe the answer is:
chilli
'hot meal' is the definition.
The definition and answer can be both things that one consumes for nourishment as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'high point when in channel islands' is the wordplay.
'high point' becomes 'hill' (I can't explain this - if you can you should give a lot more credence to this answer).
'when in' indicates putting letters inside.
'channel islands' becomes 'CI'.
'hill' placed inside 'ci' is 'CHILLI'.
'is' acts as a link.
Can you help me to learn more?
(Other definitions for chilli that I've seen before include "Type of capsicum" , "or not on the radio" , "Hot spice" , "spicy dish" , "Small hot pod" .)