Related Clues:
- Attendance count, informally
- Smoke detectors
- Eskimos rub them
- Organs that sniff
- Busybodies' active organs?
- Organs of smell
- Olfactory organs
- On the face of it, they seem like 31 across without one
- On the face of it, the South has got involved with 30 across
- Sounds as if they get sent for the difference between Sion and session
- On the face of it they get sent, by the sound of it
- Sent through them, by the sound of it
- Going on ahead, see 3 down for them (5)
- They go on ahead to get 21 across, for instance
- They sound as if they get sent