Indoctrinate (9)
I believe the answer is:
inculcate
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">indoctrinate</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for inculcate that I've seen before include "drill" , "Habitually stress the idea" , "Instil (idea) by persistent instruction" , "Impress on the mind" , "Din into" .)