Elegant: the antithesis of Country and Western? (6)

I believe the answer is:

urbane

'elegant' is the definition.
(thesaurus)

I cannot understand how the rest of the clue works.

(Other definitions for urbane that I've seen before include "Cultured" , "Refined and civilised" , "Suave and sophisticated" , "Suavely elegant" , "Cosmopolitan" .)

I've seen this clue in The Times.

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