Wretched Bradley's initial disclosure of documents (5)

I believe the answer is:

bleak

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'wretched' is the definition.
(thesaurus)

'bradley's initial disclosure of documents' is the wordplay.
'initial' says to take the initial letters.
'disclosure of documents' becomes 'leak' (I can't explain this - if you can you should give a lot more credence to this answer).
The first letter of 'bradleys' is 'b'.
'b'+'leak'='BLEAK'

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(Other definitions for bleak that I've seen before include "Novel house" , "Desolate, hopoeless" , "Stark" , "Austere" , "Dreary; cold, miserable" .)

I've seen this clue in The Independent.

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