Snoozing (6)
I believe the answer is:
asleep
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">snoozing</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for asleep that I've seen before include "Like kippers" , "Having nodded off" , "not paying attention" , "Dormant, inactive" , "Napping" .)