Related Clues:
- P at the Parthenon
- Dumb one
- Density symbol, in physics
- Letter from Greece
- P look-alike
- One slow on the uptake
- Ignoramus
- Certain sorority chapter
- Extinct Mauritian
- Frat letter, perhaps
- It's been extinct since the late 17th century
- Bygone bird
- Fraternity character
- Letter from college?
- Air density symbol