Attorneys having no say in what's dishonest (6)

I believe the answer is:

rotten

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'dishonest' is the definition.
(thesaurus)

I don't understand the rest of the clue.

(Other definitions for rotten that I've seen before include "Suffering from decay" , "Informally, very much" , "Falling to pieces from age or morally contemptible" , "'Decayed, stinking (6)'" , "Decaying - quite putrid" .)

I've seen this clue in the Irish Times (Crosaire) and The Irish Times.

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