Scomo troubled women in capital city (6)
I believe the answer is:
moscow
'capital city' is the definition.
(I've seen this before)
'scomo troubled women' is the wordplay.
'troubled' indicates an anagram.
'women' becomes 'w' (standard abbreviation).
'scomo' with letters rearranged gives 'mosco'.
'mosco'+'w'='MOSCOW'
'in' acts as a link.
(Other definitions for moscow that I've seen before include "Bolshoi Ballet base" , "City of 13" , "Olympic city, 1980" , "Capital of Russia" , "capital city" .)