Soul in concentrated extract (7)

I believe the answer is:

essence

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

I don't understand how the remainder of the clue works.

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(Other definitions for essence that I've seen before include "Scent; core" , "Characteristic nature" , "one of 21 [HEARTS]" , "quality of perfume?" , "Inner nature of anything" .)

I've seen this clue in The Sun.

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