He takes too much interest (6)

I believe the answer is:

usurer

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'he takes too much interest' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.

This is the entire clue.

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(Other definitions for usurer that I've seen before include "Shylock, for example" , "Extortionate lender of money" , "Unscrupulous lender" , "Shylock, say" , "Unfair moneylender" .)

I've seen this clue in the Evening Standard.

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