Understand cricketing term — clear (3,4)
I believe the answer is:
get over
'clear' is the definition.
(I've seen this before)
'understand cricketing term' is the wordplay.
'understand' becomes 'get' (getting is a kind of understanding).
'cricketing term' becomes 'over' (sequence of balls in cricket).
'get'+'over'='GET OVER'
(Other definitions for get over that I've seen before include "master?" , "Deal with successfully, improve in health" , "Clear" , "Recover" .)