Maybe Chantilly Lace discovered in appeal
I believe the answer is:
racecourse
'maybe chantilly' is the definition.
I can't judge whether this defines the answer.
'lace discovered in appeal' is the wordplay.
'discovered' means to look at the middle letters.
'in' indicates putting letters inside.
'appeal' becomes 'recourse' (I can't justify this - if you can you should give a lot more credence to this answer).
The middle of 'lace' is 'ac'.
'ac' put inside 'recourse' is 'RACECOURSE'.
Can you help me to learn more?
(Other definitions for racecourse that I've seen before include "Hippodrome (originally)" , "Eg, Epsom" , "better frequented location?" , "Running track for horses" , "E.g. Ascot" .)