Crossword Genius

Not turning down an invitation? (7,2)

Ross

I believe the answer is:

rolling up

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'not' is the definition.
The definition and answer are not the same part of speech.

'turning down an invitation?' is the wordplay.
'turning' becomes 'rolling' (rolling is a kind of turning).
'down an invitation?' becomes 'up' (I am not sure about this - if you are sure you should believe this answer much more).
'rolling'+'up'='ROLLING UP'

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I've seen this clue in The Globe and Mail.
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