Related Clues:

• Drop a __ to (write)
• Embarrassing outbreak
• Airport delay?
• Post office annoyance
• Box office formation
• It might initiate a pickup
• Pen stroke
• Policy
• Display of bad temper
• Public tiff
• Stock of goods for sale
• See 10 Across
• 'A Chorus ___'
• Company's wares
• Prompt delivery