Dagger's partner
I believe the answer is:
cloak
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dagger's partner</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 cloak that I've seen before include "Loose overgarment" , "Loose outer garment" , "Camouflage" , "Cover, hide" , "Screen" .)