Place one must get out of party game (9)

I believe the answer is:

dodgeball

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

'game' is the definition.
(I know that dodgeball is a type of ball game)

'place one must get out of party' is the wordplay.
I cannot really understand how this works, but
'one' could be 'a' and 'a' is found within the answer.
'of' could be 'o' and 'o' is found in the answer.
'party' could be 'l' and 'l' is present in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in The Times.

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