Amount of money returned in Japan (3)

I believe the answer is:

yen

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'amount' is the definition.
(yen is a kind of amount)

I cannot understand how the rest of the clue works.

(Other definitions for yen that I've seen before include "Currency of Japan" , "Intense desire for Japanese money" , "Intense longing" , "Longing for a currency unit" , "Have a longing for Japanese money?" .)

I've seen this clue in the Evening Standard.

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