Light throw (4)
I believe the answer is:
toss
'light throw' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for toss that I've seen before include "What to do with a pancake and a caber" , "ball" , "Raise a bit of money before opening" , "'Flip, a coin or pancake say (4)'" , "Lob" .)