Beatrix Potter told a ducky tale about her (6)

I believe the answer is:

jemima

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

I cannot understand how the remainder of the clue works.

(Other definitions for jemima that I've seen before include "- Puddleduck (B. Potter)" , "Beatrix Potter's Puddle-Duck" , "Potter's Miss Puddle-Duck" , "-- Puddleduck (Beatrix Potter)" .)

I've seen this clue in the Evening Standard.

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