Openness (7)
I believe the answer is:
candour
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">openness</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for candour that I've seen before include "Openness, honesty" , "Artlessness" , "open)" , "sincerity" , "show frankness" .)