Related Clues:

• A synthetic fabric
• Strong, resilient, synthetic fibre
• Hard-wearing clothing material, twilled cotton
• Hard-wearing material seen in jeans
• Manmade fibre
• Mined for a hard-wearing fabric
• Man-made fabric
• Is that the stuff that gets dug up from underground?
• 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