Criminal taking in brother in Tuscan city (8)
I believe the answer is:
florence
'tuscan city' is the definition.
(I've seen this before)
'criminal taking in brother' is the wordplay.
'criminal' becomes 'fence' (I've seen this before).
'taking' is an insertion indicator.
'in brother' becomes 'lor' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'fence' enclosing 'lor' is 'FLORENCE'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for florence that I've seen before include "Brunelleschi's birthplace" , "Medicis' Tuscan city" , "Ms Nightingale in great Italian city" , "foreign city" , "Firenze" .)