Agent, chap brought in free carpet (9)

I believe the answer is:

reprimand

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'carpet' is the definition.
(I've seen this before)

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

(Other definitions for reprimand that I've seen before include "Official scolding" , "Expression of disapproval" , "telling off" , "Formal rebuke" , "Tick off - carpet" .)

I've seen this clue in The Sun.

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