Strongroom (5)
I believe the answer is:
vault
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">strongroom</span>' is the definition.<br/ ><span class="explanation-format__explanation">(vault is a kind of strongroom)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for vault that I've seen before include "Leap; storage chamber" , "You can do this with a pole" , "Spring - clear - cellar" , "Bank's strongroom" , "Where bodies may be kept" .)