Private instructor (5)
I believe the answer is:
tutor
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">private instructor</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for tutor that I've seen before include "Personal coach" , "Mentor" , "college teacher" , "train" , "Trout (anag)" .)