Big meal includes large, empty trifle dish from France (10)
I believe the answer is:
blanquette
'dish from france' is the definition.
'blanquette' can be an answer for 'dish' (I have seen 'French dish' mean 'blanquette' so perhaps 'dish' could also mean 'blanquette'). I'm unsure of the 'from france' bit.
'big meal includes large empty trifle' is the wordplay.
'big meal' becomes 'banquet' (banquet is a kind of meal. I am not sure about the 'big' bit.).
'includes' indicates putting letters inside.
'large' becomes 'L' (eg in clothes sizes).
'empty' suggests removing the centre.
'trifle' with its middle taken out is 'te'.
'banquet' placed around 'l' is 'blanquet'.
'blanquet'+'te'='BLANQUETTE'
Can you help me to learn more?
(Another definition for blanquette that I've seen is " French dish".)