Put back in the oven (6)
I believe the answer is:
reheat
'put back in the oven' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for reheat that I've seen before include "Cook again" , "Jet engine afterburner" , "Warm (food) up again" , "Of cooked food, give another go in the microwave" , "Method of getting extra power from jet engine" .)