1) Cosmopolitan 2) Cultivated 3) Cultured letter to a pope 4) Debonair 5) Debonair, like James Bond 6) Effortlessly gracious 7) Elegant in manner 8) Elegant, like Cary Grant 9) French word used in English 10) Gracious with ease 11) Like 007 12) Nicely polished 13) Not coarse 14) Polished 15) Polite and refined Found on https://www.crosswordclues.com/clue/urbane
having the polish and suavity regarded as characteristic of sophisticated social life in major cities: an urbane manner. · reflecting elegance, sophistication, etc., esp. in expression: He maintained an urbane tone in his letters. Found on https://www.infoplease.com/dictionary/urbane