Related Clues:

• Fraternity 'P'
• Air-density symbol
• Pythagoras's P
• Fishes' fingerprints?
• Fish experts
• Fingerprints
• Fingerprints (slang)
• Touch-up strokes
• Ointment amounts
• 55-Down letter
• Applies with a Q-Tip, say
• Hector's end?
• Secondary character in Aristophanes?
• Little touches, as of paint
• Sigma's predecessor