Related Clues:

• Loooong wait
• Forever, seemingly
• Many a moon
• Prisoners do it
• Clock watcher's wait, seemingly
• Ump's call
• Endless years
• A lo-o-ong time
• Two or more eras
• See 32-Across
• Very long stretch
• Geologist's measure
• Time on end
• Many, many moons
• Unit of Time