Cricket delivery (6)
(Other definitions for ball that I've seen before include "One spotted in competition" , "All-round" , "Squash, say" , "that one might throw?" , "Orb" .)
(Other definitions for bouncer that I've seen before include "A heavy - climbing cricket delivery" , "Club employee" , "Dance-hall employee" , "trampolinist?" , "One who keeps troublemakers out of a bar" .)
'cricket delivery' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for yorker that I've seen before include "Cricket delivery aimed at the feet" , "Cricket delivery, pitching under the bat" , "Bowler's stratagem (cricket)" , "Bowler's delivery type" , "Difficult cricket delivery to play" .)
(Other definitions for googly that I've seen before include "Cricket bowl that breaks in the opposite way to that expected" , "Bamboozling delivery?" , "An off break bowled with an apparently leg break action" , "Unusual cricket delivery" , "Type of cricket-ball bowled" .)