Athlete and judges perhaps about to turn up (6)

I believe the answer is:

jumper

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'athlete' is the definition.
(jumper is a kind of athlete)

I don't understand the remainder of the clue.

(Other definitions for jumper that I've seen before include "Knitwear - bounder" , "Woollen garment" , "that may be long for an athlete" , "Piece of clothing; one leaping" , "Garment for upper body, or an athletic leaper" .)

I've seen this clue in The Hindu.

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