Crossword Genius

Note to little sibling creates division (7)

Ross

I believe the answer is:

mitosis

'division' is the definition.
(type of cell division)

'note to little sibling' is the wordplay.
'note' becomes 'mi' (as in do-re-mi).
'little sibling' becomes 'sis' (short for sister).
'mi'+'to'+'sis'='MITOSIS'

'creates' acts as a link.

(Another definition for mitosis that I've seen is " Type of cell division".)

I've seen this clue in The Independent.
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