Apostle (8)
I believe the answer is:
disciple
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">apostle</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 disciple that I've seen before include "Pupil - follower" , "Adherent who helps to spread the doctrine" , "Learner in school" , "A follower or apostle" , "Devout follower" .)