Treasure container
I believe the answer is:
chest
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">treasure container</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 chest that I've seen before include "Box or trunk" , "Part of body; storage box" , "Strong box; thorax" , "Coffer; trunk" , "Rib area" .)