The outcome is sure not right! (5)
I believe the answer is:
issue
'the outcome' is the definition.
(thesaurus)
'is sure not right' is the wordplay.
'not' indicates named letters should be taken away.
'right' becomes 'r' (common abbreviation).
'sure' with 'r' taken away is 'sue'.
'is'+'sue'='ISSUE'
(Other definitions for issue that I've seen before include "Difficulty" , "Important question" , "Bone of contention" , "Important topic for offspring" , "Debate topic; flow out" .)