Intoxicating drink (7)
I believe the answer is:
alcohol
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">intoxicating 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 alcohol that I've seen before include "Source of intoxication" , "Spirits etc" , "Intoxicating element of liquor" , "Strong drink" , "drinks" .)