Related Clues:

• Average letter grade
• Report card grade
• Round letter
• The third alphabet letter
• Capital in Canada and Colombia?
• Left of center?
• Low passing grade
• Third character to appear in 'Macbeth'
• Icy core?
• 'Middle' note
• "Middle" note
• Middling mark at school
• Meh grade
• Soft component of fleece?
• Just-OK mark