Curative network set up to support wealthy Florentines (9)

I believe the answer is:

medicinal

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'curative' is the definition.
(I've seen this in another clue)

I don't understand how the remainder of the clue works.

(Other definitions for medicinal that I've seen before include "of health-giving properties" , "Having healing properties" , "concerning drugs" , "analeptic" , "of a health-giving nature?" .)

I've seen this clue in The Times.

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