Anger about some current wild behaviour (7)
I believe the answer is:
rampage
'wild behaviour' is the definition.
'rampage' can be an answer for 'behaviour' (I have seen 'destructive behaviour' mean 'rampage' so perhaps 'behaviour' could also mean 'rampage'). I'm not certain of the 'wild' bit.
'anger about some current' is the wordplay.
'anger' becomes 'rage' (rage is a kind of anger).
'about' means one lot of letters goes inside another.
'some current' becomes 'amp' (electricity).
'rage' enclosing 'amp' is 'RAMPAGE'.
Can you help me to learn more?
(Other definitions for rampage that I've seen before include "Charge around being wild and destructive" , "Violent rush" , "A mad rush" , "Dash around violently" , "Go berserk" .)