Delivery bowled the whole team? (4)
I believe the answer is:
ball
'delivery' is the definition.
(ball is a kind of delivery)
'bowled the whole team?' is the wordplay.
I cannot really see how this works, but
'bowled' could be 'b' (cricket abbreviation) and 'b' is found in the answer.
'whole' could be 'all' (I've seen this in another clue) and 'all' is present in the answer.
No letters remain.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for ball that I've seen before include "that one might throw?" , "Sphere for sport" , "Orb" , "Round object - dance" , "All-round" .)