Related Clues:

• Avenue liners
• Hardwood sources
• Some street liners
• Boulevard liners
• Forest denizens
• Tennyson's 'immemorial ___'
• Shade makers
• Arborist's concern
• Ashes, e.g.
• Baobab and banyan
• Kilmer classic
• Some surgery patients
• Dendrologists' study
• Colonnade trees
• Street shaders