Possible Clues:

• Illusory art technique
• Art technique that's French for 'fools the eye'
• Technique used in realistic painting to deceive the eye (6,1'4)
• In art, what the French achieved by quickness of hand?
• Image of a tunnel painted by Wile E. Coyote, e.g.
• Promote lie, spinning line that's illusion
• More polite in exchange about line in realistic art form
• Molière plot contrived an illusory form of art
• A fish; go on ice