Party drink (5)
I believe the answer is:
punch
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">party drink</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for punch that I've seen before include "Hit - party drink" , "Wife-beater" , "Puppet character, drink and tool for making holes" , "box" , "Strike, Judy's husband" .)