Olympics weapon (4)
I believe the answer is:
epee
'olympics weapon' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for epee that I've seen before include "there's a point to it" , "Thin fencing sword" , "Rapier" , "Fencing sword similar to a foil" , "sharp-edged implement" .)