Tin-glazed earthenware (5)
I believe the answer is:
delft
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tin-glazed earthenware</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for delft that I've seen before include "Netherlands town famed for pottery" , "Dutch blue and white glazed earthenware" , "City in the Netherlands" , "Potter production" , "Netherlands town famous for its pottery" .)