Comic hating smart stooge (8,3)
I believe the answer is:
straight man
'stooge' is the definition.
(I've seen this before)
'comic hating smart' is the wordplay.
'comic' is an anagram indicator (an unusual or comical spelling).
'hating'+'smart'='hatingsmart'
'hatingsmart' with letters rearranged gives 'STRAIGHT MAN'.
(Other definitions for straight man that I've seen before include "Heterosexual" , "Stooge to a comedian" , "Feed" , "Comedian's stooge" .)