Related Clues:

• More than 50% of the letters above
• Over eight thirteenths of the alphabet?
• 'Once __ ... '
• "Once __ ... "
• 'Once ___ a Mattress'
• "Once — a time ..."
• ''Once __ a time . . .''
• Standing above
• Training on, as a bike
• Where many things are balanced
• Standing upon
• Part of some riverside toponyms
• 'Once ___ a time'
• Stratford-__-Avon
• 'Once ___ a One More Time' (Britney Spears jukebox musical)