Archery missile (5)
I believe the answer is:
arrow
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">archery missile</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for arrow that I've seen before include "Slender, pointed missile" , "Narrow missile" , "Arm" , "Indicator; missile" , "Direction symbol" .)