Possible Clues:

• Trains in Alaska perhaps, heading north, cease to run
• Can't think what to say when Irish party holds line
• Say no more about your dessert tipping over
• Doctor sure to run out of words
• Turn off gas having kicked bottle in the air
• Have no more to say? Use the tea towel
• Run out
• Stop talking, having to work in kitchen
• Cut the cackle and lend a hand after Christmas dinner
• Cut the cackle and use the tea cloth