Drinking bout (5)
I believe the answer is:
spree
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">drinking bout</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for spree that I've seen before include "Spell of unrestrained activity" , "Fling - Berlin's river" , "running through the streets of Berlin?" , "orgy" , "Junket" .)