Small barrels (4)
I believe the answer is:
kegs
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">small barrels</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 kegs that I've seen before include "Small barrels as for beer" , "Beer casks" , "Small casks or barrels" .)