Funded boycott on last book by Dahl, reportedly (10)

I believe the answer is:

bankrolled

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'funded' is the definition.
(bankrolling is a kind of funding)

'boycott on last book by dahl reportedly' is the wordplay.
'boycott' becomes 'ban' (I've seen this in another clue).
'on' means one lot of letters go next to another.
'last book by' becomes 'k' (I can't explain this - if you can you should believe this answer much more).
'dahl' becomes 'Roald' (author Roald Dahl).
'reportedly' shows a homophone (sound like).
'roald' sounds like 'rolled'.
'ban'+'k'+'rolled'='BANKROLLED'

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I've seen this clue in the Sydney Morning Herald.

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