Related Clues

• Kind of alphabet
• Kind of signals
• Code name
• "Tru" Tony winner
• Inventor who inspired this puzzle
• Dotty inventor?
• Tony-winning actor of 1962 and 1990
• Lewis's mystery-solving partner
• Three dashes signify an O, in this code
• Telegraph pioneer
• Samuel with a code
• Inspector of crime fiction
• ___ code
• Robert who won a Tony for "How to Succeed in Business Without Really Trying"
• "What hath God wrought" sender
• Colin Dexter's crossword-solving inspector
• Dashing fellow?
• Code creator
• Telegraph developer
• Code inventor