Related Clues:

• On a single (or past) occasion
• At some time in the past
• Quick examination
• At some former time
• At some time past
• "Ages" follower
• "A long time ___, in a galaxy far ..."
• In earlier times
• Start of a story
• Give it ___ (try out)
• "___ upon a time . . ."
• In another life
• 'Going ___ ...'
• "Fool me ___, shame on you; fool me twice ..."
• How some cousins are removed?