Related Clues:

• Might the lad get the Academician up in Russia?
• Sounds as if the colonel might be in this sort of shell
• One with a screw loose
• One cracked shell
• He's mad when the head takes action
• Shell for kook
• Ace with stunt almost comes to grief - the fool!
• Canute's foolish? Just so
• Crank action on right of reversed container
• Canute's played the fool
• Madman gives teachers box of wine
• Crazy person
• Fruitcake?
• Psycho's skull?
• Fruit with skin might be described as bananas