Stomach soother (7)
I believe the answer is:
antacid
'stomach soother' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for antacid that I've seen before include "heartburn remedy" , "Medicine to settle the stomach" , "could settle central region" , "Stomach-settling medicine" , "Indigestion relief" .)