Rustled up pastry (7)
I believe the answer is:
strudel
'pastry' is the definition.
(I know that strudel is a type of pastry)
'rustled up' is the wordplay.
'up' indicates an anagram (letters get chucked up).
'rustled' anagrammed gives 'STRUDEL'.
(Other definitions for strudel that I've seen before include "Baked dish" , "Rustled like thin apple-filled pastry" , "Dessert of thin pastry filled with fruit" , "Rustled (anag.)" , "Rolled pastry dessert" .)