Crossword Genius

Person who prohibits placard? (6)

Ross

I believe the answer is:

banner

This clue is a double definition.

'person who prohibits' is the first definition.
(someone who ban things)

'placard?' is the second definition.
(a placard is a banner or poster)

(Other definitions for banner that I've seen before include "Large fabric sign" , "Queen brought in British flag" , "Standard carried at demo etc" , "Military standard" , "Knight's standard" .)

I've seen this clue in The Independent.
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