Natural conflict after uprising (3)
I believe the answer is:
raw
'natural' is the definition.
(synonyms)
'conflict after uprising' is the wordplay.
'conflict' becomes 'war' (war is a kind of conflict).
'after uprising' is a reversal indicator.
'war' written backwards gives 'RAW'.
(Other definitions for raw that I've seen before include "Like a recruit" , "Naked" , "Bleeding" , "Unrefined" , "Abraded" .)