Possible Clues:

• It's said after a sneeze
• Sneeze reaction
• Father does it in response to sneeze
• Spooner's certainly breathed hard, as a sneezer's wished?
• React to one preparing to blow, as bishop may do?
• Some jobless youth getting benediction after involuntary expulsion
• 'It's said to a sneezer (5,3)'
• Nice thing to say to a sneezer
• It's often said to follow involuntary expulsion
• Heard it said by father when you¿re coming down with something