Country’s range of mountains, one further East (5)
I believe the answer is:
china
'country's' is the definition.
(China is an example)
I don't understand the remainder of the clue.
(Other definitions for china that I've seen before include "Make a chain in the country" , "Porcelain ware and country" , "chum" , "Porcelain articles" , "Asian country" .)