Weapons (4)
I believe the answer is:
arms
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">weapons</span>' is the definition.<br/ ><span class="explanation-format__explanation">('arm' can be a synonym of 'weapon')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for arms that I've seen before include "pacifists won't take up" , "Blazonry; weaponry" , "Weapons, collectively" , "bombs and guns etc" , "They're used for picking up" .)