Relieve, assuage (4)
I believe the answer is:
ease
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">relieve</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">assuage</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(easing is a kind of assuaging)</span><br/ ><br/ ></span>
(Other definitions for ease that I've seen before include "Soothe" , "Lessen intensity" , "Affluence" , "No trouble" , "Absence of effort" .)