Clue: Secondary material

Answer: FILLER

Length: 6

---

Similar Clues:

• Material for some mills (ORE with 3 letters)
• Trilby material (FELT with 4 letters)
• Penny whistle material (TIN with 3 letters)
• Skylight insulation material, perhaps (AEROGEL with 7 letters)
• Fiction material? (PULP with 4 letters)
• Racquet material (GUT with 3 letters)
• Healthful sandwich material (WHOLEWHEATBREAD with 15 letters)
• Material for trousers (GABARDINE-2 with 11 letters)
• Military material (KHAKI with 5 letters)
• Pavement material (e.g. ASPHALT with 7 letters)