Type of oven that'll take large pastry dish (4)
I believe the answer is:
flan
'pastry dish' is the definition.
(I've seen this before)
'type of oven that'll take large' is the wordplay.
I cannot quite see how this works, but
'large' could be 'l' and 'l' is found in the answer.
The remaining letters 'fan' is a valid word which might be clued in a way I don't understand.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for flan that I've seen before include "Open pastry or sponge case with tasty filling" , "Open-topped pastry dish" , "Flat open tart" , "Sweet/savoury open tart" , "Open pastry case with savoury filling" .)