Discharging debts, inclined to work for boss (4)

I believe the answer is:

stud

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'for boss' is the definition.
(both can mean a metal decoration)

I don't understand the rest of the clue.

(Other definitions for stud that I've seen before include "Style of poker" , "Bejewel" , "Removable collar button" , "Projecting boss" , "old wooden post" .)

I've seen this clue in The Guardian.

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