Big-headedness (3)
I believe the answer is:
ego
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">big-headedness</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 ego that I've seen before include "Conscious self" , "One's sense of self-importance" , "Sense of identity" , "Consciousness" , "Person's sense of self" .)