Moscow's land (6)
I believe the answer is:
russia
'moscow's land' 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 "Eurasian country" , "East European state" , "Former Communist country of eastern Europe and northern Asia" , "Country of the tsars" , "With intense, vigorous, feeling" .)