Scupper long tree (6,4)

I believe the answer is:

scotch pine

'tree' is the definition.
(Scotch pine is an example)

'scupper long' is the wordplay.
'scupper' becomes 'scotch'.
'long' becomes 'pine' (to pine for someone is to long for them).
'scotch'+'pine'='SCOTCH PINE'

I've seen this clue in The Everyman puzzle in The Observer.

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