Indigestion remedy (7)
I believe the answer is:
antacid
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">indigestion remedy</span>' is the definition.<br/ ><span class="explanation-format__explanation">(medicine for indigestion)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for antacid that I've seen before include "Substance used to treat stomach upsert" , "Stomach drug" , "remedy for tummy trouble?" , "Medicine to settle the stomach" , "Indigestion relief" .)