23 across
With
it
in
audition,
one
most
like
to
make
others
double
up
(8)
With it in audition, one most like to make others double up (8)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
The definition here is most like to make others double up, meaning the funniest — doubling up with laughter, of course. You take W from 'with' (dropping the rest), add IT, then pop I (meaning 'one') inside TEST (an audition), giving you the full answer.