Simple weapon (5)
I believe the answer is:
sling
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">simple weapon</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 sling that I've seen before include "Injured-arm support" , "Stone-throwing weapon" , "attached to a rifle, perhaps" , "Cloth to support arm" , "Arm bandage; hurl" .)