Savoury flan (6)
I believe the answer is:
quiche
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">savoury flan</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(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" .)