Understood to have been brought to fruition (8)

I believe the answer is:

realised

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

I cannot understand how the remainder of the clue works.

(Other definitions for realised that I've seen before include "Came to be aware" , "made ready" , "Understood - cashed in" , "Became aware of in sidereal way" , "Became fully aware of or converted into money" .)

I've seen this clue in the Evening Standard.

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