It's cooked in ovens (7)
I believe the answer is:
venison
'it's' is the definition.
I can't tell whether this defines the answer.
'cooked in ovens' is the wordplay.
'cooked' indicates an anagram (letters cooked into a new form).
'in'+'ovens'='inovens'
'inovens' anagrammed gives 'VENISON'.
Can you help me to learn more?
(Other definitions for venison that I've seen before include "Game" , "Deer meat" , "Flesh of deer" , "Type of meat" , "Meat - in ovens (anag)" .)