Prosecute for wrongful use (3)
I believe the answer is:
sue
'prosecute' is the definition.
(I've seen this in another clue)
'wrongful use' is the wordplay.
'wrongful' indicates anagramming the letters (I've seen this in other clues).
'use' is an anagram of 'SUE'.
'for' is the link.
(Other definitions for sue that I've seen before include "Appeal" , "Use to prosecute" , "Start proceedings against (someone)" , "Take case against in court" , "Legally challenge" .)