Afternoon rest (6)

I believe the answer is:
siesta
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">afternoon rest</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 siesta that I've seen before include "After lunch nap" , "Afternoon break" , "Afternoon rest" , "Seat is found for a Spanish rest period" , "Afternoon nap in Cadiz" .)