Didn't suffer quietly (6)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">didn't suffer quietly</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 moaned that I've seen before include "Made low sound of pain or distress" , "Made low sound of pain - or grumbled" , "Made low mournful sound as of pain" , "Complained" , "A demon (anag.)" .)