Possible Clues:

• Chat with rest in Ritz regularly about complaint
• Wind almost common with one's stomach problem
• German satirist treated stomach problem
• Talk, endlessly cliched, is a source of irritation
• Wind is following mostly common stomach ailment
• Stomach inflammation
• Stomach complaint
• Way of cooking bird is about right as reason for 1 down 23?
• Flatulence, temperature, runs? It's stomach upset
• Initially German satirist is distressed by complaint