The most common and most likely answer to this crossword clue is the 5 plus 3 letter word APPLE PIE
I've seen this crossword clue in The Guardian
A
P
P
L
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More clues leading to the result APPLE PIE
- Tasty pastry is an order that’s just fine
- Sort of order that’s typically American
- Ideal kind of order for dessert
- A perfect order is a fruit tart
- Type of chart following tech company’s typically American product
- Dessert that may appear before diner’s order?
- For dessert an order can’t be bettered
- For dessert, such an order can’t be bettered
- Sweet and perfect to order
- Mix tape pile starts off covering Prince on piano? That’s sweet
Buddy explains!

The straight part
We know that "Sweet/perfect to order" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sweet/perfect to order = apple pie.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does APPLE PIE mean?
APPLE PIE noun- A pie or tart made with a filling of cooked apples.
- Anything positive that is quintessentially American.