Crossword Genius

The trees at Epsom, of course? (4)

Ross

I believe the answer is:

oaks

I'm a little stuck... Click here to teach me more about this clue!

'the trees' is the definition.
(oak is a kind of tree)

'at epsom of course?' is the wordplay.
'at' is a charade indicator (letters next to each other).
'epsom' becomes 'ak' (I can't justify this - if you can you should believe this answer much more).
'of' becomes 'o''.
'course?' becomes 's'.
'ak' after 'o' is 'oak'.
'oak'+'s'='OAKS'

Can you help me to learn more?

(Other definitions for oaks that I've seen before include "Acorn producers" , "Horse race - trees" , "Hardwood trees" , "Acorn trees" , "material for shipbuilding" .)

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