Possible Clues:

• Pie or ice cream ingredient
• Tree in City of London hidden in hollow
• Nut in a praline
• Thanksgiving pie nut
• Certain nut used to make a pie
• New spade alone maybe with power to pull up tree
• Nut seen entering Cape Canaveral
• Popular kind of pie at Thanksgiving
• A nut used for pie or ice cream
• State nut of Arkansas