Disreputable and unsteady, speaking drunkenly (6)

I believe the answer is:

louche

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'disreputable' is the definition.
(similar in meaning)

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

(Other definitions for louche that I've seen before include "Seedy" , "Shifty or disreputable" , "Appealingly disreputable" , "Of questionable taste or morality" , "Shasy or questionable, from France" .)

I've seen this clue in The Times.

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