Crossword Genius

Silk knickers with the rear cut out? (5)

Ross

I believe the answer is:

brief

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'cut out?' is the definition.
'brief' can be an answer for 'cut' (thesaurus). I'm unsure of the 'out?' bit.

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for brief that I've seen before include "Summary of facts for barrister to consider" , "Provide someone with the facts of the case" , "Concise; short-lived" , "Short - work for a barrister" , "Case given to a barrister" .)

I've seen this clue in The Telegraph.
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