Deliveries completed (4)
I believe the answer is:
over
I believe this clue is a double definition.
'deliveries' is the first definition.
(I've seen this before)
'completed' is the second definition.
('over' can be a synonym of 'completed')
(Other definitions for over that I've seen before include "Six balls in cricket" , "Completely ended" , "Finished like cricket session" , "Finished -- as a remainder" , "bridge?" .)