Pertaining to the stomach (7)
I believe the answer is:
gastric
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pertaining to the stomach</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for gastric that I've seen before include "Pertaining to the stomach" , "Relating to or involving the stomach" , "Stomachic" , "touching stomach" , "Abdominal" .)