Racecourse area popular with elder, for example (7)
I believe the answer is:
aintree
'racecourse' is the definition.
(I've seen this before)
'area popular with elder for example' is the wordplay.
'area' becomes 'a' (maths abbreviation).
'popular' becomes 'in'.
'with' is a charade indicator (letters next to each other).
'elder for example' becomes 'tree' (elder is a kind of tree).
'a'+'in'+'tree'='AINTREE'
(Other definitions for aintree that I've seen before include "Grand National course" , "6 National course" , "Liverpool race course" , "Home of the Grand National" , "National racecourse" .)