Iced drink (6)
I believe the answer is:
frappe
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">iced drink</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for frappe that I've seen before include "served cold" , "Like a cold drink" , "Fruit drink frozen to a mush" , "Of a drink, served iced or chilled" , "Iced coffee drink" .)