Pastry cake (8,4)
I believe the answer is:
bakewell tart
'pastry cake' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for bakewell tart that I've seen before include "Confection from Derbyshire" , "flan" , "sweet" , "Jam and almond dessert from Derbyshire" , "Pudding" .)