Propelled in a high arc (6)
I believe the answer is:
lobbed
'propelled in a high arc' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for lobbed that I've seen before include "Threw up in the air" , "Threw in high arc as in cricket" , "Threw (a ball) in a high arc" , "Propelled in a high arc" , "Bowled underhand" .)