Its currency is the ruble (6)

I believe the answer is:

russia

(Other definitions for russia that I've seen before include "Find US sari strangely in this country" , "Moscow's country" , "East European country" , "US air's bad in this country" , "Eurasian country" .)

I've seen this clue in the USA Today.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.