Country has moved a range of mountains (5)
I believe the answer is:
chain
'range of mountains' is the definition.
(synonyms)
'country has moved a' is the wordplay.
I cannot really see how this works, but
'a' is found in the answer.
The remaining letters 'chin' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
(Other definitions for chain that I've seen before include "restraint" , "Coupling" , "It's as strong as its weakest link" , "One kind of mail" , "unwelcome to house seeker" .)