Possible Clues:

• Pierre-Auguste of impressionism
• French artist Pierre
• It's to do with wrought-iron artist
• French director on the subject of film style
• Artist starts to receive eulogies -- number one, right?
• French painter, d. 1919
• In US wedding centre, Irish artist
• Artist appearing in American gambling centre I run
• Famous artist -- there's hesitation about his lack of colour
• 'The Bathers' artist Pierre-Auguste