Possible Clues:

• Savvy about
• With 12-Across, start of a fairy tale
• Immediately after
• Once ___ a Time in America, 1984 film directed by Sergio Leone
• "___ the Roof" (Drifters song)
• Knowing, slangily
• Part of some riverside toponyms
• ''When You Wish __ a Star''
• At the top of
• Just after