Wrong compliment - cash would be a feat (14)
I believe the answer is:
accomplishment
'a feat' is the definition.
(thesaurus)
'wrong compliment cash' is the wordplay.
'wrong' indicates an anagram.
'compliment'+'cash'='complimentcash'
'complimentcash' is an anagram of 'ACCOMPLISHMENT'.
'would be' acts as a link.
(Other definitions for accomplishment that I've seen before include "Successful achievement" , "Something achieved" , "exploit" , "Skill" .)