Something fruity from the fancy piece round the corner (4)
I believe the answer is:
flan
'round the corner' is the definition.
The definition and answer can be both things that one consumes for nourishment as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for flan that I've seen before include "Open-topped pastry dish" , "Open tart with a sweet or savoury filling" , "Open pastry case with savoury filling" , "Baked dish filled with fruit or custard" , "Open pastry filled with savouries, fruit or custard" .)