Central School report to appear twaddle (5)

I believe the answer is:

hokum

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'twaddle' is the definition.
(I know that twaddle can be written as hokum)

I cannot understand how the remainder of the clue works.

(Other definitions for hokum that I've seen before include "gammon" , "Claptrap" , "Rubbish" , "Hogwash" , "Nonsense (colloq.)" .)

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

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