Couturier who withdrew his endorsement? (8)

I believe the answer is:

designer

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'couturier' is the definition.
(synonyms)

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

(Other definitions for designer that I've seen before include "inventor" , "Person who creates or fashions things such as clothes" , "Stylist" , "Who draws" , "Architect or couturier, say" .)

I've seen this clue in the Sydney Morning Herald.

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