Permit wearing couple's jewellery (9)

I believe the answer is:

bracelets

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'jewellery' is the definition.
Although both the answer and definition are nouns, they are not in the same form of the noun.

'permit wearing couple's' is the wordplay.
'permit' becomes 'let' (synonyms).
'wearing' means one lot of letters goes inside another.
'couple's' becomes 'brace's' (brace can mean a pair of something).
'let' placed into 'braces' is 'BRACELETS'.

Can you help me to learn more?

(Another definition for bracelets that I've seen is " Adornments for the wrist".)

I've seen this clue in The Telegraph.

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