Related Clues:
- Before any of us can remember, perhaps
- "___ upon a time ..."
- ___ around the bases
- With 1-Down, every seven days
- "... __ and for all!"
- Start of an epic spaghetti western
- At some past point
- '... bitten, twice shy'
- On just one occasion
- On a single occasion only
- Just as a single occurrence
- At one time
- '. . . . bitten, twice shy'
- One time only
- Upon a time to start the story