Related Clues:

• Persistent cautions and police finally move
• Carol for a time in northern city continuing to make progress
• Going ahead with record production and performing
• Earnest raising of hat when meeting one distinguished fellow
• Firm can set out to restrict debt
• Diligent
• Persistent in holding on
• Conscientious
• Painstaking — I tingled (anag)
• Clingy
• Cross on account of what is owed to firm that won't let go
• Showing care and effort editing end of historical novel
• Careful to tip hat to one man
• Bill, swamped by several debtors' notes, is refusing to give up
• Conscientious trainee in editing possibly