Grandma produced pictures (5)

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.

(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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