Related Clues:

• Crazy thing to put before one's coaches!
• Train-mad?
• Crazy, perhaps, but often with motive
• Touched the engine
• Engine (abbrev.)
• Look firm - but is mad!
• Bats getting a century, a half-century and two ducks possibly
• Engine getting round the bend
• Batty, in Mexico
• Engine off the rails
• Engine not all there?
• Not mentally sound, in Seville
• Batty, in Spain
• Engine — nuts
• Spanish nuts