Finished small groups of deliveries (5)
I believe the answer is:
overs
'groups of deliveries' is the definition.
'overs' can be an answer for 'deliveries' (cricket term). I am unsure of the 'groups of' bit.
'finished small' is the wordplay.
'finished' becomes 'over' (over can mean finished or ended).
'small' becomes 's' (abbreviation - e.g. clothes size).
'over'+'s'='OVERS'
Can you help me to learn more?
(Other definitions for overs that I've seen before include "Bowling spells" , "Maidens perhaps" , "Periods of play" , "Divisions of play in cricket" , "Series of balls in cricket" .)