Smoothly polite (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
suave
'smoothly polite' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for suave that I've seen before include "Svelte" , "Charming, confident" , "Debonair" , "Urbane and sophisticated" , "Charming and sophisticated though insincere" .)