Fine in country bordering sea, balmy (8)
I believe the answer is:
perfumed
'balmy' is the definition.
(thesaurus)
'fine in country bordering sea' is the wordplay.
'fine' becomes 'f' (abbreviation).
'in' means one lot of letters goes inside another.
'country' becomes 'peru' (Peru is an example).
'bordering' is a charade indicator (letters next to each other).
'sea' becomes 'med' (abbreviation of Mediterranean).
'f' put into 'peru' is 'perfu'.
'perfu'+'med'='PERFUMED'
(Other definitions for perfumed that I've seen before include "tempting aroma" , "Fragrant" , "Scented pp" , "With a natural fragrance" .)