Casual quality (4)

I believe the answer is:
ease
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">casual quality</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ease that I've seen before include "Rest and leisure" , "Comfort or freedom from difficulty" , "Absence of hardship" , "Comfort and naturalness" , "Allay" .)