Guardian, protector (8)
I believe the answer is:
defender
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">guardian</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">protector</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for defender that I've seen before include "Back" , "One who takes up the cause of another" , "repulsive type" , "Goalkeeper" , "supporter" .)