Cooked in oven (7)
I believe the answer is:
roasted
'cooked in oven' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for roasted that I've seen before include "Severely reprimanded" , "Cooked (like a joint)" , "Carpeted" , "How meat might be cooked" , "Cooked (like chestnuts)" .)