Wine barrel (4)

I believe the answer is:
cask
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wine barrel</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 cask that I've seen before include "Wine vessel; sack (anag.)" , "Liquor container" , "Wine barrel" , "Drink here" , "Large barrel" .)