Prove counterproductive (8)
I believe the answer is:
backfire
(Other definitions for backfire that I've seen before include "Cause a result opposite to that intended" , "Rebound badly" , "explosion" , "Be self-defeating" , "report" .)
I believe the answer is:
backfire
(Other definitions for backfire that I've seen before include "Cause a result opposite to that intended" , "Rebound badly" , "explosion" , "Be self-defeating" , "report" .)