Greenish drink (7)
I believe the answer is:
limeade
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">greenish drink</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for limeade that I've seen before include "Fruity drink" , "Winter festival" , "Fizzy drink" , "soft drink" , "it's a soft one" .)