Ballet star regrets nothing coming up short (7)

I believe the answer is:

danseur

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'ballet star' is the definition.
(I've seen this before)

I cannot understand how the remainder of the clue works.

(Other definitions for danseur that I've seen before include "Participant in The Rite of Spring perhaps" , "Male ballet performer" , "Maybe Nureyev" , "One may need to be on one's toes" , "Male ballet dancer, partner of a ballerina" .)

I've seen this clue in The Sun.

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