Possible Clues:

• Frivolous or flighty person
• Twit
• Fickle chap left one lying around, note, next to tree
• Given bribe, lift off gallows Till Eulenspiegel, say
• Flighty or gossipy person
• Flighty type first to forfeit freedom, say, on gallows
• Gossip - one telling tales about criminal's last appeal, rejected before gallows
• Silly goose
• One who's unreliable teller of tales about lake monster up in mountainous land
• Flighty one