Related Clues:

• Soft-rayed food fish
• Prompt
• Massachusetts' Cape ___
• See 6-Across
• Like some pymts.
• Punctual
• One way to ship
• Like some arrivals
• Stamp on a package
• See 21-Across
• New England catch
• Seafood selection
• Letters on a package
• Words on an airport monitor
• Flight board phrase