Possible Clues:

• Silly person
• Silly act, with that woman's underwear in
• Achievement with plant by the wet flibbertigibbet
• I'm absent-minded old man, heading out into winter showers?
• Simple Simon, say, gets Father Bear in trouble
• Simple Simon, say, getting Father Bear in trouble
• Frivolous person's performance touches her understanding
• Airhead's anxiety about the support at home
• Nitwit
• Wally if near the bar becomes flustered