Relief of pain (9)
I believe the answer is:
analgesia
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">relief of pain</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 analgesia that I've seen before include "The relief of pain by drugs" , "No hard feelings" , "painless" , "Inability to feel pain" , "Absence of pain" .)