Anger about a politician causing storm (7)
I believe the answer is:
rampage
'storm' is the definition.
(I've seen this before)
'anger about a politician' is the wordplay.
'anger' becomes 'rage' (rage is a kind of anger).
'about' indicates putting letters inside.
'a politician' becomes 'amp' (I've seen this in other clues).
'rage' enclosing 'amp' is 'RAMPAGE'.
'causing' acts as a link.
(Other definitions for rampage that I've seen before include "Rage wildly around" , "Violent action" , "Charge around being wild and destructive" , "Destructive spree" , "Violent rush" .)