Most sagacious (6)
I believe the answer is:
wisest
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">most sagacious</span>' is the definition.<br/ ><span class="explanation-format__explanation">('wise' can be similar in meaning to 'sagacious')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for wisest that I've seen before include "Most sage and sagacious" , "Most sensible" , "Closest to Solomon" , "Most astute" , "Most sage and knowledgeable" .)