Batting, have fun as a ball is being bowled (2,4)
I believe the answer is:
in play
'a ball is being bowled' is the definition.
I can't tell whether this defines the answer.
'batting have fun' is the wordplay.
'batting' becomes 'in' (as in batting or being 'in' in cricket).
'have fun' becomes 'play' (I've seen this in another clue).
'in'+'play'='IN PLAY'
'as' is the link.
Can you help me to learn more?
(Other definitions for in play that I've seen before include "not out of bounds" , "(Of ball) able to be used in game" , "(Of ball in game) legally able to be hit" , "(Of ball) available for use in game" , "on the field" .)