Fruit from tree, poplar, best all but ruined (4-5)

I believe the answer is:

sorb-apple

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'fruit from tree' is the definition.
'sorb apple' can be an answer for 'tree' (sorb apple tree is a kind of tree). I'm not certain of the 'fruit from' bit.

'poplar best all but ruined' is the wordplay.
'all but' means to remove the last letter ('all but' can mean 'almost' or 'nearly').
'ruined' indicates an anagram.
'poplar'+'best'='poplarbest'
'poplarbest' with its final letter taken away is 'poplarbes'.
'poplarbes' anagrammed gives 'SORB-APPLE'.

Can you help me to learn more?

I've seen this clue in The Independent.

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