Choose to keep brave, dancing twist at home? (9)

I believe the answer is:

curveball

I'm a little stuck... Click here to teach me more about this clue!

'twist at home?' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'choose to keep brave dancing' is the wordplay.
'choose' becomes 'cull' (I've seen this in another clue).
'to keep' indicates putting letters inside.
'dancing' is an anagram indicator.
'brave' is an anagram of 'rveba'.
'cull' placed around 'rveba' is 'CURVEBALL'.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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