Possible Clues:

• Incapable fighter, in boxing slang
• Redpack container
• Extremes of ceramic art in Ottoman novel - a favourite of Andy Warhol's
• Accountant in Ottoman complex has an Andy Warhol favourite
• Money-maker and accountant get new stock item for 12 across
• Sounds like money-maker in the garden is able to pour it all into Bolognese perhaps