Oktoberfest vessel (5)
I believe the answer is:
stein
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">oktoberfest vessel</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 stein that I've seen before include "Glass" , "Gertrude ---; US writer" , "German earthenware beer mug" , "Inset (anag.)" , "Gertrude __, avant-garde US author, d. 1946" .)