Division of a school year (4)
I believe the answer is:
term
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">division of a school year</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for term that I've seen before include "what being 9 [PREGNANT] leads to?" , "Period of education" , "Call" , "Expression, or school period" , "Word; limited period" .)