Person of wide learning (8)
I believe the answer is:
polymath
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">person of wide learning</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for polymath that I've seen before include "Person of great and varied learning" , "One high in intelligence" , "Very learned person" , "Person of wide-ranging knowledge" , "Person of wide knowledge" .)