At work, my partner may give me a lift (9)

I believe the answer is:

ballerina

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But I can't explain it at all! Could you help me understand?

(Other definitions for ballerina that I've seen before include "She dances to a rain bell" , "Pavlova?" , "Danseuse" , "girl on point duty" , "agile performer" .)

I've seen this clue in The Guardian.

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