Show indifference (5)
I believe the answer is:
shrug
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">show indifference</span>' is the definition.<br/ ><span class="explanation-format__explanation">(a shrug can indicate indifference)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for shrug that I've seen before include "display nonchalance" , "Dismissive movement of shoulders" , "Express silent doubt" , "women's wear" , "Dismissive gesture" .)