Fain would I find acceptance by such an ardent admirer! (3)

I believe the answer is:

fan

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

I can't explain the remainder of the clue.

(Other definitions for fan that I've seen before include "Enthusiastic admirer as of pop star" , "Spanish women wave it to cool themselves" , "Manual cooling device - for admirer?" , "Lady Windermere's - -" , "Aficionado" .)

I've seen this clue in the Evening Standard.

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