Milky coffee (5)
I believe the answer is:
latte
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">milky coffee</span>' is the definition.<br/ ><span class="explanation-format__explanation">(type of coffee drink made with milk)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for latte that I've seen before include "Milky coffee drink" , "See 21" , "frothy cup" , "Frothy milky coffee" , "hot drink" .)