Two rivers in the country (5)
I believe the answer is:
rural
'in the country' is the definition.
(rural means in the countryside)
'two rivers' is the wordplay.
'two rivers' can mean two substitutions for 'river'.
'river' becomes 'r' (abbreviation for river).
'river' becomes 'ural' (Russian river).
'r'+'ural'='RURAL'
(Other definitions for rural that I've seen before include "Not urban" , "Rustic" , "Of the country - pastoral" , "Bucolic; pastoral" , "outside the city?" .)