High or drunk (6)
I believe the answer is:
stoned
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">high</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(on drugs)</span><br/ ><br/ >'<span class="explanation-format__original">drunk</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that stoned is a more specific form of the attribute drunk)</span><br/ ><br/ ></span>
(Other definitions for stoned that I've seen before include "Slangily drunk or drugged" , "Completely under the influence" , "attacked with missiles" , "with jewels" , "Stephen thus martyred" .)