Is taking drugs with Jersey sportswoman (4,6)

I believe the answer is:

high jumper

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'sportswoman' is the definition.
Both the answer and definition are singular nouns.
Perhaps you can see an association between them that I can't see?

I don't understand the rest of the clue.

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(Another definition for high jumper that I've seen is " athlete".)

I've seen this clue in The Irish Times.

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