Tony could never be completely ribald! (5)

I believe the answer is:

blair

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'tony' is the definition.
(I've seen this before)

I don't understand how the rest of the clue works.

(Other definitions for blair that I've seen before include "Tony ..... Labour leader in Britain" , "Tony ..., modern P.M." , "Former prime minister" , "George Orwell's real name" , "George Orwell's actual family name" .)

I've seen this clue in the Evening Standard.

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