Some food in iron pot ruined (7)
I believe the answer is:
portion
'some food' is the definition.
The answer and definition can be both things that one consumes for nourishment as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'iron pot ruined' is the wordplay.
'ruined' is an anagram indicator.
'iron'+'pot'='ironpot'
'ironpot' with letters rearranged gives 'PORTION'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for portion that I've seen before include "Part of a whole" , "Piece of a whole" , "Segment" , "A lot of" , "allotment" .)