Find how to make finance work profitably (5)

I believe the answer is:

learn

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

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

(Other definitions for learn that I've seen before include "Con" , "Gain knowledge or skill" , "Find out - assimilate facts" , "Take in" , "be taught a lesson" .)

I've seen this clue in the Evening Standard.

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