Judge a little more fair-mindedly? (3)
I believe the answer is:
ref
'judge' is the definition.
'a little more fair-mindedly?' is the wordplay.
'a little' says the answer is hidden in the clue.
'REF' is hidden in the letters of 'more fair mindedly'.
(Other definitions for ref that I've seen before include "Sports umpire" , "Football official (colloq.)" , "A diminutive umpire in soccer or boxing" , "Whistleblower (abbr)" , "In brief, a soccer controller" .)