Possible Clues:

• Kidney shaped nut
• Nut in a mixed nuts can
• Financial advisers cut up fruit
• Hard to crack shell, with nut
• Masticate, as when swallowing a nut
• Only a nut would make money before we turn up
• Nut tree ready? Cut, then chop
• A tree in the centre of Newcastle to chop down
• Nut whose shell is poisonous
• Chew as you would this nut