Related Clues:

• Letter switched to ess in this puzzle's theme
• North American capital
• Parliament Hill setting
• Canadian city once known as Bytown
• St. Lawrence feeder
• Capital of Colombia?
• Chief Pontiac, e.g.
• Fair grade
• NHL city
• Grade in the 70's
• Mediocre mark
• Mid-grade?
• Civic leader?
• Can opener?
• Musical note