Inheritor (4)
I believe the answer is:
heir
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">inheritor</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for heir that I've seen before include "One who will succeed to title" , "Legal inheritor" , "One due to inherit" , "Person who inherits" , "Expected successor" .)