Strikes disrupted this (4)
I believe the answer is:
hits
'strikes' is the definition.
(hit can mean to strike)
'disrupted this' is the wordplay.
'disrupted' indicates anagramming the letters.
'this' is an anagram of 'HITS'.
(Other definitions for hits that I've seen before include "Pop successes" , "Top pops" , "welcome in the theatre world?" , "In the 60s these were 'groovy'" , "that please the public?" .)