Esteemed teacher (4)
I believe the answer is:
guru
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">esteemed teacher</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 guru that I've seen before include "Spiritual guide" , "Recognised expert in some field" , "Wise leader" , "Name given to the each of the first ten leaders of the Sikh religion" , "Swami" .)