Answer:

OPTICALILLUSION

AnswerCrossword Clue
OPTICALILLUSIONMagician's deception
OPTICALILLUSIONDesert mirage, e.g.
OPTICALILLUSIONEscher's "Relativity" is an example of it
OPTICALILLUSIONFata morgana.
OPTICALILLUSIONTrick of a sort.
OPTICALILLUSIONSawing a woman in two, e.g.
OPTICALILLUSIONTrompe l'oeil
OPTICALILLUSIONLegerdemainist's forte
OPTICALILLUSIONEyeball bender
OPTICALILLUSIONIt might have you both coming and going