Benefit to university worker in the city centre (6)
I believe the answer is:
profit
'benefit' is the definition.
('profit' can be a synonym of 'benefit')
'university worker in the city centre' is the wordplay.
'university worker' becomes 'prof'.
'in the city centre' becomes 'it' (I can't explain this - if you can you should give a lot more credence to this answer).
'prof'+'it'='PROFIT'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for profit that I've seen before include "financial advantage" , "Gain from employment of capital" , "Clean up" , "returns" , "Surplus earnings" .)