Related Clues:

• Office heads-up
• In-tray delivery
• It's got nothing
• It might have the heading 'Re:'
• Supervisor's note
• Tear up, as a check
• In-box note, perhaps
• Not occupied
• Empty like space
• Short written message
• Null and empty
• .The one who gets the cheque
• Containing nothing or not legally binding
• Empty space or vacuum
• Empty space or not legally binding