A revolt occurring (7)
I believe the answer is:
'occurring' is the definition.
(arising is a kind of occurring)
'a revolt' is the wordplay.
'revolt' becomes 'rising' ('rising' can be a synonym of 'revolt').
(Other definitions for arising that I've seen before include "Coming up for discussion" , "Stemming from like committee matters, or getting up" , "Emerging" , "occurring" , "becoming manifest" .)