Possible Clues:

• Dad left rook under a tree
• Tree; London district
• Cottonwood, for one
• In Vogue dismissing upstart in the forest
• Bird briefly seen beside father in tree
• Plant for all to see in sheds
• East London district - or a deciduous tree
• What has branches providing part of our capital
• Part of London well-liked, but not for top people
• Plant oddly really prompt to come up