Related Clues:

• After ten years National Trust in state of decline
• Having low moral standards
• Books after some time degenerate
• Declining period of time with books
• Indulgently lavish
• Self-indulgent English scoundrel overwhelmed by depression
• *Just OK
• Respectable clothing in the current era is in decline
• Decanted (anag.)
• Last month, F Prefect’s friend becoming corrupt!
• Lavish and then some