Rising gold craze in this country (7)
I believe the answer is:
romania
'this country' is the definition.
(Romania is an example)
'rising gold craze' is the wordplay.
'rising' shows that the letters should be reversed in order (going up in a down clue).
'gold' becomes 'or' ('or' is the heraldic name for gold).
'craze' becomes 'mania' (I've seen this before).
'or' written backwards gives 'ro'.
'ro'+'mania'='ROMANIA'
'in' is the link.
(Other definitions for romania that I've seen before include "Oman air in the eastern European state" , "Eastern European country" , "Country of eastern Europe" , "Balkan country" , "European republic" .)