Temporary educator (6,7)
I believe the answer is:
supply teacher
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">temporary educator</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for supply teacher that I've seen before include "Stand-in educator" , "A short-term replacement" , "Temporary educator" , "Stopgap in school" .)