Possible Clues:

• Edward Lear speciality
• Ridiculous piece nurse cuts off having opened Uncle Sam's zip?
• A frabjous set of lines, perhaps by Lear, that gyre and gimble to the ear
• Bad son's even seen entertaining King Lear production?
• *Seemingly silly poetry
• Work by Edward Lear?
• Nobody will accept reduced cast and cuts in production of Lear?
• There may be rhyme but no reason in it
• Absurd poetry
• The Fool's lines in Lear?