Possible Clues:

• Failed in this
• Fail to pay for flat due for demolition
• Don't show up an FBI man, back of last month
• Not paying for basic computer programming
• Fail to pay
• In this, for want of anything better, the editor turns to the end of 11 across
• Don't pay expert to secure gold plate
• Give cause to send bill collectors
• Through lack of in this one begins to get fed up
• In this there's a lack to make one fed up with a last month