Bored response (4)
I believe the answer is:
yawn
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bored response</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 yawn that I've seen before include "Open mouth wide" , "Sleepy gape" , "Expression of tiredness" , "Bored sign" , "Boring event" .)