Possesses permit for meat (6)
I believe the answer is:
haslet
'meat' is the definition.
The answer and definition can be both things that one consumes for nourishment as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'possesses permit' is the wordplay.
'possesses' becomes 'has' (to have is to possess).
'permit' becomes 'let' (synonyms).
'has'+'let'='HASLET'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for haslet that I've seen before include "Offal dish" , "Chopped pork offal" , "Kind of meal loaf, eaten cold (6)" , "tripe" , "Meatloaf" .)