Possible Clues:

• Synthetic substance found in college that's simmering at heart
• Material recycled by Remploy
• Compound with large molecules in simple repeated units
• Many before second half of summer found starch
• Eg, protein, rubber etc.
• Compound of macromolecules (such as starch)
• Repeated-molecule compound
• Lucite, e.g.
• Employer without capital foolishly making synthetic material
• Mo, reply to the large molecule