Crossword Genius

Chair here (own Scots pine, for example) (7)

Ross

I believe the answer is:

aintree

'chair here' is the definition.
(the Chair is a feature of Aintree race course)

'own scots pine for example' is the wordplay.
'own' becomes 'ain' ('ain' can be a synonym of 'own').
'scots pine for example' becomes 'tree' (scots pine is a kind of tree).
'ain'+'tree'='AINTREE'

(Other definitions for aintree that I've seen before include "place for horse racing" , "Grand National course" , "Here they run" , "Liverpool race course" , "Liverpool's racecourse" .)

I've seen this clue in The Guardian.
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