Filled pastries (7)
I believe the answer is:
eclairs
'filled pastries' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for eclairs that I've seen before include "Cream cakes" , "Oblong pastries" , "Elongated cream puffs" , "Oblong cream puffs" , "Choux pastries with cream and chocolate icing" .)