Crossword Genius

Gathering where nutmeg pie is shared out (7,2)

Ross

I believe the answer is:

meeting up

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'nutmeg pie is shared out' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'gathering where' is the wordplay.
'gathering' becomes 'meeting' ('meet' can be a synonym of 'gather').
'where' becomes 'up' (I can't explain this - if you can you should believe this answer much more).
'meeting'+'up'='MEETING UP'

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I've seen this clue in The Guardian.
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