Brought down onto seat, reportedly? (10)

I believe the answer is:

overthrown

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'brought down' is the definition.
The definition and answer can be both to do with social activities as well as being past participle verbs.
Perhaps there's an association between them I don't understand?

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for overthrown that I've seen before include "Upset" , "deposed" , "Defeated" .)

I've seen this clue in The Telegraph.

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