Pudding that can come before order? (5-3)
I believe the answer is:
apple-pie
This clue is a double definition.
'pudding' is the first definition.
'that can come before order?' is the second definition.
(reference to the phrase apple-pie order)
(Other definitions for apple-pie that I've seen before include "----- - --- order: perfect condition" , "Perfect order -- bed jokily made" , "Fruit dessert (with order suggesting perfection?)" , "Popular dessert" , "Sweet (in good order?)" .)