Diving attacker received trivial sum, initially for throwing game (5)
I believe the answer is:
darts
'game' is the definition.
(darts is a kind of game)
'diving attacker received trivial sum initially' is the wordplay.
'initially' indicates taking the first letters.
The initial letters of 'diving attacker received trivial sum' is 'DARTS'.
'for throwing' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for darts that I've seen before include "Shoots" , "Moves along rapidly" , "They are thrown at targets in pubs" , "Tears" , "Traditional pub game" .)