Edible item never cooked in the middle (5)
I believe the answer is:
prawn
'edible' is the definition.
The answer and definition can be both things that one consumes for nourishment as well as being singular nouns.
Perhaps there's an association between them I don't understand?
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for prawn that I've seen before include "Marine crustacean" , "Large shrimp" , "Small tasty crustacean, nice in cocktail" , "Cocktail item" , "Small, edible crustacean" .)