Possible Clues:

• Songbird
• "___-Willow" ("The Mikado" song)
• Chickadee kin
• Chickadee relative
• Relative of a chickadee
• Cousin of a chickadee
• Flighty type consumed by attitude
• ". . . a little tom-___ sang . . ."
• Start of a fair exchange
• Part of an even exchange