Enthusiast has eaten large baked dish (4)
I believe the answer is:
flan
'baked dish' is the definition.
(I've seen this before)
'enthusiast has eaten large' is the wordplay.
I cannot really understand how this works, but
'large' could be 'l' (eg in clothes sizes) and 'l' is present in the answer.
'enthusiast' could be 'fan' (fan is a kind of enthusiast) and 'fan' is found in the remaining letters.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for flan that I've seen before include "Sweet/savoury open tart" , "Open tart with a sweet or savoury filling" , "Open pastry filled with savouries, fruit or custard" , "Baked dish filled with fruit or custard" , "Open pastry or sponge case with tasty filling" .)