Crossword Genius

Grandma produced pictures (5)

Ross

I believe the answer is:

moses

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'grandma' is the definition.
(I've seen this before)

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for moses that I've seen before include "Hebrew prophet who led the Israelites on the Exodus" , "Biblical prophet" , "Hebrew prophet and lawgiver" , "Grandma - - , painter" , "He led the Jews from bondage in Egypt" .)

I've seen this clue in the Evening Standard.
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