Unproductive anger follows set going wrong (7)
I believe the answer is:
sterile
'unproductive' is the definition.
(thesaurus)
'anger follows set going wrong' is the wordplay.
'anger' becomes 'rile' (I've seen this in other clues**).
'follows' means one lot of letters go next to another.
'going wrong' indicates an anagram.
'set' is an anagram of 'ste'.
'rile' after 'ste' is 'STERILE'.
(Other definitions for sterile that I've seen before include "like a mule" , "Not able to produce offspring" , "Uninspired" , "Aseptic or infertile" , "Unproductive" .)