Free from worry (2,4)
I believe the answer is:
at ease
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">free from worry</span>' is the definition.<br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for at ease that I've seen before include "In a relaxed attitude" , "Free from anxiety" , "Military order to relax from attention" , "Relax - that's an army order" , "resting" .)