Cricketer misled fan unfairly (9)
I believe the answer is:
fieldsman
'cricketer' is the definition.
(fieldsman is a kind of cricketer)
'misled fan unfairly' is the wordplay.
'unfairly' indicates an anagram (I've seen this in other clues).
'misled'+'fan'='misledfan'
'misledfan' is an anagram of 'FIELDSMAN'.
(Other definitions for fieldsman that I've seen before include "who tries to minimize score" , "Maybe cover" .)