How bounders are caught unawares? (2,3,3)
I believe the answer is:
on the hop
'unawares?' is the definition.
(I've seen this before)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for on the hop that I've seen before include "Be caught . . . . . . . . to be taken unawares - on one foot?" , "Be caught thus to be caught unprepared" , "triple-jumpers must concentrate here first" , "Busy - off guard" , "Be caught...to be taken unawares" .)