Possible Clues:

• Prolix
• Verbose, and what the circled letters in this puzzle literally are?
• Excessively wordy
• Lengthy rambling
• Very talkative
• Going on and on
• I'd lend gown out, alas unshortened
• Wordy
• As rambler, yearned to tour land with duke
• Beware of that trombone player: He's ___