Pronouncing the vowels in “exercise” (3)

I believe the answer is:

use

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'exercise' is the definition.
(I know that exercise can be written as use)

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

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(Other definitions for use that I've seen before include "Expend in amusement" , "particular church liturgy" , "Consumption" , "exercise" , "Profit" .)

I've seen this clue in the Evening Standard.

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