An afternoon rest (6)
I believe the answer is:
siesta
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">an afternoon rest</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for siesta that I've seen before include "Forty winks" , "Seat is found for a Spanish rest period" , "Catnap" , "Afternoon nap in a warm climate" , "After lunch nap" .)