Related Clues:

• Milky substance produced by some trees
• Man-made fabric
• Could the North get the only mixture that's synthetic?
• Materialistic New York initially, and the initial bit of London
• Only the North could be sure to give oe a hand
• With the North it's only synthetic
• The North gets only this material bit
• The stuff that only comes at the end
• Thus is the North only synthetic
• It's only to the North that it's not natural
• One gets the thread of this only south of the North
• Is the North only a mixture that's synthetic?
• It's only synthetic next to the North
• The North only makes stuff like this
• The North can only produce this synthetically