Stop a bowler accepting money? (4)
I believe the answer is:
halt
'stop' is the definition.
(halt can mean to stop)
'a bowler accepting money?' is the wordplay.
'a bowler' becomes 'hat' (bowler is a type of hat).
'accepting' indicates putting letters inside (inserted letters are accepted).
'money?' becomes 'l' (L can mean 'pounds').
'hat' going around 'l' is 'HALT'.
(Other definitions for halt that I've seen before include "Pull up" , "Falter - stop" , "Stop; minor station" , "Bring to a stop; lame" , "Small railway station" .)