Unable to relax (3,2,4)
I believe the answer is:
ill at ease
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">unable to relax</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ill at ease that I've seen before include "Elite, alas? (Anag)" , "Nervous, uncomfortable" , "appear uncomfortable" , "awkward" , "Fidgety" .)