Settled bosses' business expenses (9)
I believe the answer is:
overheads
'business expenses' is the definition.
'overheads' can be an answer for 'expenses' (overhead is a kind of expense). I am not certain of the 'business' bit.
'settled bosses'' is the wordplay.
'settled' becomes 'over' (I've seen this before).
'bosses'' becomes 'heads' (I've seen this in another clue).
'over'+'heads'='OVERHEADS'
Can you help me to learn more?
(Other definitions for overheads that I've seen before include "Expenses involved in running a business" , "projector transparencies" , "Costs incurred" , "deliveries" .)