Hooligan has worked in strike (4,3)
I believe the answer is:
lash out
'strike' is the definition.
'hooligan has worked in' is the wordplay.
'hooligan' becomes 'lout' (both can mean an aggressive person).
'worked' indicates anagramming the letters.
'in' means one lot of letters goes inside another.
'has' anagrammed gives 'ash'.
'lout' placed around 'ash' is 'LASH OUT'.
(Other definitions for lash out that I've seen before include "React aggressively" , "unprovoked attack" , "severely run down" , "React violently" , "Become suddenly aggressive" .)