Washstand vessel (4)
I believe the answer is:
ewer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">washstand vessel</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 ewer that I've seen before include "A type of jug" , "Open vessel with handle and spout" , "Large water jug" , "A wide-lipped jug" , "Decorative pitcher" .)