Schoolchild (5)
I believe the answer is:
pupil
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">schoolchild</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for pupil that I've seen before include "Dark centre of the eye" , "part of my anatomy" , "One being taught" , "that shrinks from brightness" , "Schoolchild; part of eye" .)