Sounds as though it's cooked brown (3)
I believe the answer is:
dun
'brown' is the definition.
(I know that dun is a type of light brown)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for dun that I've seen before include "nag, for payment" , "Demand for money" , "Press for payment" , "Brownish grey horse" , "Dingy brown" .)