Spiritual mentor
I believe the answer is:
guru
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">spiritual mentor</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for guru that I've seen before include "Recognised expert in some field" , "Wise leader" , "Recognised leader in some field" , "Spiritual teacher, mentor" , "Hindu or Buddhist spiritual teacher" .)