Sagacity (6)
I believe the answer is:
wisdom
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sagacity</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for wisdom that I've seen before include "Knowledge coupled with good judgement" , "Erudition" , "Ability to make the right use of knowledge" , "Accumulated learning, sagacity" , "` `Experience is the father of ......' '" .)