23 down
Party
or
6?
(4)
Party or 6? (4)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
The 6 is a cross-reference to 6 down (EXIT), and a door is an exit. The wordplay is a charade: DO (a party) plus OR (from the word 'or') gives DOOR.