Plump US man captured in draughts in Twister ? (6,7)

I believe the answer is:

chubby checker

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'man captured in draughts in twister ?' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'plump us' is the wordplay.
'plump' becomes 'chubby' (synonyms).
'us' becomes 'checker' (I am not sure about this - if you are sure you should believe this answer much more).
'chubby'+'checker'='CHUBBY CHECKER'

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