Florentine sculptor, a forerunner of Michelangelo (9)

I believe the answer is:

donatello

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'florentine sculptor' is the definition.
'donatello' can be an answer for 'sculptor' (I've seen this before). I'm not certain of the 'florentine' bit.

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for donatello that I've seen before include "C 15 Florentine sculptor" , "Old lean-to (anag) - sculptor" , "Famous Florentine sculptor" , "Chipper" , "Italian artist" .)

I've seen this clue in The Times.

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