Crossword Genius

Advocates prohibition (3)

Ross

I believe the answer is:

bar

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'prohibition' is the definition.
(thesaurus)

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(Other definitions for bar that I've seen before include "Local" , "Prohibit; pressure unit" , "Tavern" , "Hostelry" , "shoal at mouth of river" .)

I've seen this clue in The Globe and Mail.
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