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Refute it? Maybe about right. It could provide apples (5,4)

Ross

I believe the answer is:

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'it could provide apples' is the definition.
The definition suggests a singular noun which matches the answer.

'refute it? maybe about right' is the wordplay.
'maybe' is an anagram indicator.
'about' indicates putting letters inside.
'right' becomes 'r' (common abbreviation).
'refute'+'it'='refuteit'
'refuteit' with letters rearranged gives 'fuittree'.
'fuittree' placed around 'r' is 'FRUIT TREE'.

Can you help me to learn more?

(Another definition for fruit tree that I've seen is "Perhaps apple".)

I've seen this clue in Sydney Morning Herald.