Related Clues:

• Morse ___
• Computer programmer's work
• Cryptoquote, really
• Worst market share
• Morse's creation
• What a spy may write in
• Portion for Mother Hubbard's dog
• Word for the wiser
• Program lines
• Java ingredient?
• Something to crack
• Set of rules
• What the poor dog had
• Morse __
• See 21 Across