Related Clues:

• Emergency message
• Poseidon's call
• It may be left on the table
• Mayday cousin
• Reward of a sort
• Actors wait for it
• Mnemonic device
• Bill add-on
• Extra amount
• CQD successor
• Terse radio message
• Broker : commission :: waitress : ___
• Actor activator
• '___ yer old man!'
• Inside information