Possible Clues:

• Father adopting an excellent cure for everything
• Greek goddess of healing
• A cure-all
• A cure for all ills
• Criticise expert sitting on a universal remedy
• Criticise expert on article that's supposed to deal with all complaints
• Criticise expert before a remedy for all is produced
• The god gets a seer, by the sound of it, for a remedy (7)
• A sleep round about one: that will cure anything
• Elixir