American pencil case, quite grand, cracking mirror (5,3)
I believe the answer is:
apple pie
I'm afraid I can't explain this answer.
Can you help me to learn more?
(Other definitions for apple pie that I've seen before include "tarte Tatin, for example" , "an order that's perfect" , "Dessert - kind of bed or order" , "Sweet (in good order?)" , "Tasty pastry" .)