Riviera nation (6)

I believe the answer is:

monaco

(Other definitions for monaco that I've seen before include "Oman Co. (anag)" , "Southwest European principality" , "Med principality" , "Mediterranean principality" , "Grand Prix street circuit" .)

I've seen this clue in the King Feature Syndicate.

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.