27/26 across
Pool
party
after
nude
hen
night
not
new
(5-4)
Pool party after nude hen night not new (5-4)
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hints
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checks
0
hints
The definition is at the beginning of the clue.
How the clue works
Pool is your definition — eight-ball being the classic pool game. "Nude hen" strips the outer letters off hen to leave E, then "night not new" removes N (for new) from night to give IGHT, and those two bits combine into EIGHT. Chuck party (BALL) after that and you're done.