Lectures on ethnicity in Aintree, for example? (10)
I believe the answer is:
racecourse
'aintree for example?' is the definition.
(Aintree is a British racecourse)
'lectures on ethnicity' is the wordplay.
'lectures' becomes 'course' (a course can be a series of lectures).
'on' is a charade indicator (letters next to each other).
'ethnicity' becomes 'race'.
'course' after 'race' is 'RACECOURSE'.
'in' acts as a link.
(Other definitions for racecourse that I've seen before include "better frequented location?" , "Bath, perhaps" , "Running track for horses" , "Venue for meeting" , "Aintree, for example" .)