Crossword Genius

An un-English suavity (6)

Ross

I believe the answer is:

polish

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'suavity' is the definition.
(I've seen this in another clue)

I don't understand the remainder of the clue.

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(Other definitions for polish that I've seen before include "Rub to a gloss" , "Smooth or shine by rubbing" , "European - gloss" , "Shine up the nationality" , "Rub - European" .)

I've seen this clue in the Evening Standard.
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