Anger about current violent disorder (7)
I believe the answer is:
rampage
'violent disorder' is the definition.
('rampage' can be a synonym of 'violent disorder')
'anger about current' is the wordplay.
'anger' becomes 'rage' (rage is a kind of anger).
'about' means one lot of letters goes inside another.
'current' becomes 'amp' (electricity).
'rage' going around 'amp' is 'RAMPAGE'.
(Other definitions for rampage that I've seen before include "Violent disorder" , "Rioting, for example" , "Run wild" , "Map gear (anag.)" , "Go berserk" .)