Meat in ovens gone to pot (7)
I believe the answer is:
venison
'meat' is the definition.
(I know that venison is a game meat)
'in ovens gone to pot' is the wordplay.
'gone to pot' indicates anagramming the letters.
'in'+'ovens'='inovens'
'inovens' with letters rearranged gives 'VENISON'.
(Other definitions for venison that I've seen before include "Type of meat" , "Deer meat" , "Deer (as food)" , "Flesh of deer" , "Meat - in ovens (anag)" .)