Related Clues:

• Take heed
• G, e.g., but not H
• Quick message
• See 38-Down
• Of prime importance
• Staff marking
• Sardine can attachment
• IOU, e.g.
• Middle C, e.g.
• Church ___
• '___ to self . . .'
• Staff member
• Symbol on a staff
• Skeleton, for one
• Jot down