"___ is knowing who you are, what you want to say and not giving a damn": Gore Vidal (5)

I believe the answer is:

style

(Other definitions for style that I've seen before include "Former writer" , "Fashion - designation" , "Particular kind, of fashion say" , "Elegance, sophistication" , "Designate" .)

I've seen this clue in The New York Times.

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