Shoot after defender's rebound (8)
I believe the answer is:
backfire
'rebound' is the definition.
(thesaurus)
'shoot after defender's' is the wordplay.
'shoot' becomes 'fire' (firing is a kind of shooting**).
'after' is a charade indicator (letters next to each other).
'defender' becomes 'back' (I've seen this in other clues).
'fire' after 'back' is 'BACKFIRE'.
(Other definitions for backfire that I've seen before include "Rebound adversely (on the originator)" , "Have an unintended negative consequence" , "Go wrong" , "Cause a result opposite to that intended" , "Be self-defeating" .)