One holding a drink for an acrobat? (7)

I believe the answer is:

tumbler

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'an acrobat?' is the definition.
('tumbler' can be a synonym of 'acrobat')

I don't understand the rest of the clue.

(Other definitions for tumbler that I've seen before include "appears to be falling" , "Drinking glass or old acrobat" , "used to drink" , "Type of drinking glass" , "vessel" .)

I've seen this clue in the Evening Standard.

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