Helplessly drunk (6)
I believe the answer is:
blotto
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">helplessly drunk</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 blotto that I've seen before include "under the table" , "Wasted" , "Three sheets to the wind" , "As one plastered" , "Cockeyed drunk" .)