Torpor (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">torpor</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 stupor that I've seen before include "that'll send you to sleep" , "lethargic" , "State of bewilderment" , "State of being dazed or numb" , "Dazed or unconscious condition, sometimes caused by alcohol" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">torpor</span>' is the definition.<br/ ><span class="explanation-format__explanation">(lethargy is a kind of torpor)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for lethargy that I've seen before include "'Lassitude, langour (8)'" , "Stringed instrument" , "Unnatural drowsiness" , "Being sluggish" , "Extreme lack of energy, listlessness" .)