Possible Clues:

• A bank deals regularly in trivial lines
• Comical poetry
• High-class poetry it isn't
• Verse representing day George packed up and left
• 'Snoop before loop' -- beginner's second-rate poetry
• Deficient verse
• North Sea region the French wanted back? Nonsense
• Stalker on end of the line exposes bad lines
• Older egg is bad? Nonsense!
• Inversely - and comically - canine?