Congenital, hereditary (6)
I believe the answer is:
inborn
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">congenital</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">hereditary</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ ></span>
(Other definitions for inborn that I've seen before include "naturally!" , "Congenital" , "Innate, natural" , "that's natural" , "Normally existing at birth" .)