Related Clues:
- Subject of many lab tests
- Word in a Cagney misquote
- With 86 Down, a gun sound
- A wrongdoer may get there at the double and be musical
- Health inspector's red flag
- Unwanted Hamelin resident
- Perform a cantata
- Unfaithful rodent?
- Mob turncoat
- Squeal like a stoolie
- -- -a-tat
- Sound really good
- Lab rodent
- Perform in a chorus
- Perform on 'Glee,' perhaps