Possible Clues:

• Sounding like a clarinet
• Eyes bigger than stomach, missing starter to get thin
• Twiglike
• Grassed up? That'll sound a bit thin
• Eager to trim leading edge of some river-banks
• How saxes sound
• Piping, fluting
• Sounding thin - weak
• Like some pipes, but prepared to have change of heart
• Oboe-like, in tone