Bloody conflict is over (3)
I believe the answer is:
raw
'bloody' is the definition.
'conflict is over' is the wordplay.
'conflict' becomes 'war' (war is a kind of conflict).
'is over' shows that the letters should be reversed in order.
'war' written backwards gives 'RAW'.
(Other definitions for raw that I've seen before include "Abraded" , "Not cooked" , "Red and inflamed" , "Bleeding" , "Damp and chilly" .)