Nothing against Indy setters' boss being well-liked (8)
I believe the answer is:
favoured
'well-liked' is the definition.
(favoured can mean popular)
'nothing against indy setters' boss' is the wordplay.
'nothing' becomes 'fa' (slang term - sweet Fanny Adams).
'against' becomes 'v' (abbreviation for 'versus').
'indy setters' boss' becomes 'our ed' ('our editor', from an Independent crossword setter).
'fa'+'v'+'oured'='FAVOURED'
'being' is the link.
(Other definitions for favoured that I've seen before include "Given preference" , "Preferred over all others" , "Preferred or privileged" , "See 11" , "Treated with partiality" .)