Jacob supplanted him in the wages audit (4)

I believe the answer is:

esau

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'jacob supplanted him' is the definition.
The definition suggests a singular noun which matches the answer.

'in the wages audit' is the wordplay.
'in' says the answer is hidden in the clue.
'ESAU' is hidden in the letters of 'wages audit'.

Can you help me to learn more?

(Other definitions for esau that I've seen before include "Biblical man who sold his birthright for a mess of pottage" , "Old Testament twin" , "Jacob's brother in the bible" , "Biblical character sounds as if he had a vision" , "man tricked by kid brother" .)

I've seen this clue in The Globe and Mail.

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