One in a one-on-one session
I believe the answer is:
tutee
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">one in a one-on-one session</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for tutee that I've seen before include "Student, pupil" , "One learns from a personal teacher" .)