Possible Clues:

• Inspire a "Gesundheit!"
• Sounding of hooter at minor explosion
• A natural explosion that could bring blessings
• Expel air from nose
• Don't keep your complaints to yourself?
• React to irritation? I'm blessed if I do!
• Blessed act?
• By the sound of it, one knows where this blows from
• Sounds as if one knows where this comes from
• By the sound of it, it's cold