Kind of glassware (7)
I believe the answer is:
crystal
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">kind of glassware</span>' is the definition.<br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for crystal that I've seen before include "Clear mineral, eg, quartz" , "Highly transparent glass" , "Colourless transparent quartz" , "Glass made at Waterford" , "Type of clear-cut, lucent glass" .)