Related Clues:

• Epitaph starter
• Part of X-X-X
• ___ et ubique (here and everywhere)
• Part of OOO
• Facial movement
• Sign of stress
• Paroxysm
• Game opener
• The first X?
• Back problem
• Spasm
• Sudden outburst
• Idiosyncrasy
• Something beyond your control
• Here, on a tombstone