Related Clues:
- It may be passed in class
- Word that can follow the ends of 20- and 54-Across and 4- and 26-Down
- B flat, for one
- Pay attention to bank's nominal rate
- All-in-one printer function
- A, B or C, for example — short message
- Debt instrument
- What you might pass, but can't fail, in school
- Part of a bird call
- A, B, C, D, F or G, by implication?
- A or G, musically
- A B C D F or G
- Short message; tone
- Give a shout-out to
- 63-Across alternative