Rest before performance that involves acrobatic manoeuvres (10)

I believe the answer is:

breakdance

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'involves acrobatic manoeuvres' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'rest before performance' is the wordplay.
'rest' becomes 'break' (I've seen this before).
'before' means one lot of letters go next to another.
'performance' becomes 'dance' (I am not sure about this - if you are sure you should believe this answer much more).
'break'+'dance'='BREAKDANCE'

'that' is the link.

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I've seen this clue in The Irish Times.

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