Riot control projectile (6,6)
I believe the answer is:
rubber bullet
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">riot control projectile</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 rubber bullet that I've seen before include "Non-lethal ammunition for riot control" , "Riot control projectile" .)