Related Clues:

• Fruit-cake ingredient
• Out-of-control
• Almond, e.g.
• Bolt attachment
• Acorn, e.g.
• Maniac
• Zealot and then some
• Filbert, for one
• Pecan or cashew
• Hexagonal holder
• ''Flashdance'' hit song
• Loony tune
• Bar morsel
• Norman Bates, for one
• Squirrel food