Drinker's seat (8)
I believe the answer is:
barstool
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">drinker's seat</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 barstool that I've seen before include "support for a drinker?" , "Pub seat" , "Drinker's seat" .)