Relaxation, respite (4)
I believe the answer is:
rest
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">relaxation</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">respite</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for rest that I've seen before include "Settle" , "Calm" , "Slumber" , "Inactivity" , "'''God ... ye, merry gentlemen'' (carol) (4)'" .)