One who follows (9)
I believe the answer is:
successor
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">one who follows</span>' is the definition.<br/ ><span class="explanation-format__explanation">(a successor follows someone else)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for successor that I've seen before include "One who follows another" , "Person who follows next in order" , "One following another" , "for one of the following people" , "One who's after" .)