Crossword Genius

Maker of images (6)

Ross

I believe the answer is:

mirror

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'maker of images' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.

This is the entire clue.

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(Other definitions for mirror that I've seen before include "model" , "in which driver glances back" , "Depict" , "Alice went through one (Carroll)" , "which reflects what you want to see" .)

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