Bird, type of pheasant that’s alternatively used for art (8)
I believe the answer is:
porridge
'bird' is the definition.
(both can refer to time in prison)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for porridge that I've seen before include "Breakfast food - time inside" , "Another breakfast dish" , "Stir" , "type of bird" , "Spell in jail and breakfast food" .)