24 down
Start
to
bash
away
in
contest
(4)
Start to bash away in contest (4)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
The definition is contest — a fight or match. Take B, the "start to bash" (just the first letter of 'bash'), then add OUT, meaning "away", and there's your answer.