Half-pint
I believe the answer is:
cup
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">half-pint</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 cup that I've seen before include "competition" , "Prize; vessel" , "Container to drink from - prize" , "Chalice; trophy" , "Trophy, drink" .)