Barbra and Debra are finished with theirs! (3)

I believe the answer is:

bra

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'debra are finished with theirs' is the definition.
I can't tell whether this definition defines the answer.

'barbra' is the wordplay.
'BRA' is hidden in amongst the letters.
However, I'm uncertain how the hidden word is indicated.

'and' is the link.

Can you help me to learn more?

(Other definitions for bra that I've seen before include "Female undergarment" , "Chest supporter" , "I give a couple a lift" , "Underwear item" , "one carrying chest" .)

I've seen this clue in the Evening Standard.

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