Cutlery box (7)
I believe the answer is:
canteen
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cutlery box</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for canteen that I've seen before include "University restaurant" , "Employees' restaurant" , "Water or cutlery container" , "Box containing cutlery" , "and where it could be used" .)