Possible Clues:

• Sent through them, by the sound of it
• Smells bouquets
• Edges (out)
• The fallen sons of Eve had none, wrote Chesterton
• They go on ahead to get 21 across, for instance
• Organs with sounds I extracted
• Sounds as if they get sent for the difference between Sion and session
• What counters count
• Nuzzles or nozzles
• On the face of it, the South has got involved with 30 across