Possible Clues:

• Flexible willow
• Willow, abnormally large, that is overlooking river
• Rosie manipulated willow
• Point accepted by outstanding Irish basket-maker
• Eurasian willow
• What makes basket more comfortable is losing its lid
• Common basket-weaving material
• Shrub's more promising with top clipped
• Tree, more promising, topped
• More promising when top's off tree