Moscow's country (6)
I believe the answer is:
russia
'moscow's country' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for russia that I've seen before include "Moscow's country" , "US air's bad in this country" , "Us airs badly sung in another country" , "Sing US airs badly in the country" , "Country of the former USSR" .)