Crossword Genius

One gradually stripped during a party game (6)

Ross

I believe the answer is:

parcel

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

'game' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe you can see an association between them that I can't see?

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for parcel that I've seen before include "Package; piece of land" , "Package wrapped in paper" , "One conveyed" , "Packet" , "Wrapped missive" .)

I've seen this clue in The Independent.
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