Cavalry sword (5)
I believe the answer is:
sabre
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cavalry sword</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for sabre that I've seen before include "Heavy cavalry sword" , "Large wasp" , "Sword (that may be rattled)" , "weapon" , "Walt --, cartoonist" .)