Confuse order to let one's hair down? (8)

I believe the answer is:

bewilder

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'confuse' is the definition.
(I know that bewilder is a more specific form of the action confuse)

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

Can you help me to learn more?

(Other definitions for bewilder that I've seen before include "Nonplus" , "Baffle" , "Deli brew (anag.)" , "Confuse totally" , "Confuse utterly" .)

I've seen this clue in The Guardian.

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