Concerning birth (5)
I believe the answer is:
natal
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">concerning birth</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for natal that I've seen before include "Of birth; former African republic" , "Relating to birth or the buttocks" , "Province of South Africa" , "of births" , "Connected to birth" .)