Rustled up some pastry (7)
I believe the answer is:
strudel
'some pastry' is the definition.
(strudel is a kind of pastry)
'rustled up' is the wordplay.
'up' indicates an anagram (letters get chucked up).
'rustled' with letters rearranged gives 'STRUDEL'.
(Other definitions for strudel that I've seen before include "Fruit-filled pastry from Austria" , "A German baked pastry" , "Rustled like thin apple-filled pastry" , "Germany pastry" , "Rustled (anag.)" .)