Crossword Genius

Key lost in blooming Italian city (8)

Ross

I believe the answer is:

florence

I'm a little stuck... Click here to teach me more about this clue!

This might be a double definition.

'key lost in blooming italian' is the first definition.
I know that 'italian' relates to this answer. I also know that both the answer and definition are singular nouns

'city' is the second definition.
(Florence is an example)

Can you help me to learn more?

(Other definitions for florence that I've seen before include "Italian city - girl's name" , "Nurse Nightingale in Italian city" , "___ Nightingale, the Lady with the Lamp, d. 1910" , "Name of girl ? city" , "Italian city, noted art centre" .)

I've seen this clue in The Independent.
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