Within country's borders it's somehow vulgar and gloomy (6)
I believe the answer is:
cloudy
'gloomy' is the definition.
(thesaurus)
'within country's borders it's somehow vulgar' is the wordplay.
'within' means one lot of letters goes inside another.
'borders' suggests removing the centre (only the edge or border letters remain).
'it's somehow vulgar' becomes 'loud'.
'country' with its middle taken out is 'cy'.
'cy' placed around 'loud' is 'CLOUDY'.
'and' is the link.
(Other definitions for cloudy that I've seen before include "Not transparent" , "Murky or nebulous" , "Obscure" , "Dull, overcast" , "'Overcast, nebulous (6)'" .)