Savoury flan (6)
I believe the answer is:
quiche
'savoury flan' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for quiche that I've seen before include "Savoury egg-based flan" , "food" , "Savoury tart with egg-based filling" , "Vegetarian tart (not eaten by a real man?)" , "Open tart with savoury egg filing" .)