Exactness (9)
I believe the answer is:
precision
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">exactness</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that precision is a type of exactness)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for precision that I've seen before include "Accuracy, exactness" , "Care" , "Meticulousness" , "Exactitude" , "Exactness, sharpness" .)