Emily Bronte covertly exposed diabolical clanger (5,4)

I believe the answer is:

ellis bell

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'emily bronte covertly' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'exposed diabolical clanger' is the wordplay.
'exposed' indicates the central letters (outside letters removed).
'diabolical' becomes 'hellish' (synonyms).
'clanger' becomes 'bell' (something which clangs).
The centre of 'hellish' is 'ellis'.
'ellis'+'bell'='ELLIS BELL'

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

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