Showing little interest (6)
I believe the answer is:
stolid
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">showing little interest</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 stolid that I've seen before include "Unemotional, unresponsive" , "displaying little emotion" , "Impassive, unemotional" , "Not excitable or showing emotion" , "with a stiff upper lip" .)