Change usable with rupees in European country (7)
I believe the answer is:
belarus
'european country' is the definition.
(country in Europe)
'change usable with rupees' is the wordplay.
'change' indicates an anagram.
'with' means one lot of letters goes inside another.
'rupees' becomes 'r' (abbreviation for rupees).
'usable' anagrammed gives 'belaus'.
'belaus' placed around 'r' is 'BELARUS'.
'in' acts as a link.
(Other definitions for belarus that I've seen before include "State" , "Minsk's country" , "European nation)" , "East European country, capital Minsk" , "European republic" .)