Related Clues:

• Hard outside, thread inside
• Partner of 44 Across
• Macadamia, e.g
• Cashew or almond
• Pistachio, for one
• Filbert, e.g
• Brazil is one
• Trail mix tidbit
• See 8
• Head teachers
• Food which might be bolted
• Crazy person
• Fruit with hard case
• Devoted fan
• Brazil, for instance