Not really fair giving corner (4)
I believe the answer is:
nook
'corner' is the definition.
(I know that corner can be written as nook)
'not really fair' is the wordplay.
'not really' becomes 'no'.
'fair' becomes 'ok'.
'no'+'ok'='NOOK'
'giving' is the link.
(Other definitions for nook that I've seen before include "Cranny or niche" , "Recess or cranny" , "Sheltered and secluded place" , "Sheltered corner" , "Alcove" .)