Money man from Tuscany's top firm stuck in lift (9)
I believe the answer is:
treasurer
'money man' is the definition.
(someone in charge of money)
'tuscany's top firm stuck in lift' is the wordplay.
I cannot really understand how this works, but
'firm' could be 'sure' (I've seen this in other clues) and 'sure' is found in the answer.
'lift' could be 'rear' (synonyms) and 'rear' is found in the leftover letters.
A single letter 't' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
'from' acts as a link.
(Other definitions for treasurer that I've seen before include "Financial controller" , "Money dealer" , "One who highly prizes" , "Financial assets manager" , "Book-keeper" .)