Pip's ideal extracted from grapes? Tell agriculturist (7)

I believe the answer is:

estella

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'pip's ideal' is the definition.
The definition suggests a singular noun which matches the answer.

'extracted from grapes? tell agriculturist' is the wordplay.
'extracted from' indicates the answer is hidden within the clue.
'ESTELLA' is hidden within 'grapes tell agriculturist'.

Can you help me to learn more?

(Other definitions for estella that I've seen before include "girl loved by Pip" , "daughter for Abel" , "Dickensian heroine" , "Sale let (anag) - girl's name" , "Pip's girl in Great Expectations" .)

I've seen this clue in The Guardian.

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