Olympic throwing event (6)
I believe the answer is:
discus
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">olympic throwing event</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for discus that I've seen before include "Athlete's projectile" , "Object thrown in athletic event" , "missile launched" , "It is thrown in athletic events" , "Object thrown in field sports" .)