Historical clue formulations

• Waterproofing material for a sail, once — 2026-09-05
• Paver's goop — 2026-07-06
• Sailor, informally — 2026-05-19
• Cigarette substance — 2026-04-20
• Black goo — 2026-03-02
• Material for a roof repair — 2026-02-17
• Pitch — 2026-02-15
• Bitumen lookalike — 2026-01-30
• Driveway goo — 2025-09-28
• Road crew goo — 2025-08-19
• Natural pitch — 2025-06-20
• Blacktop material — 2025-04-22
• Waterproofing substance — 2025-04-19
• Roofing supply — 2025-04-18
• Paving gunk — 2025-03-31
• Road repair goo — 2025-03-26
• Sticky stuff — 2025-03-12
• Salt — 2024-12-08
• Roofing material — 2024-05-01
• Road surface — 2024-02-13
• Damage the reputation of — 2023-12-15
• La Brea ___ Pits — 2023-12-04
• Road goo — 2023-11-28
• Smear — 2023-11-02
• Road workers' gloop — 2023-10-22
• - — 2023-10-12
• Blacken — 2023-08-24
• Some roofing material — 2023-07-23
• Blacken — 2023-07-09
• Besmirch — 2023-06-15
• Pitch — 2023-05-14
• 2022 Cate Blanchett drama — 2023-03-03
• Pitch — 2023-02-23
• Salt — 2023-02-17
• La Brea substance — 2023-02-14
• "___ Beach," acclaimed 1991 children's book set in Harlem — 2023-02-10
• La Brea substance — 2023-01-31
• Pine ___ (baseball player's grip enhancer) — 2022-12-23
• Dinosaur bone preserver — 2022-12-22
• Oily roofing material — 2022-12-05
• Byproduct of burning tobacco — 2022-11-06
• Road gunk … or, when doubled, tooth gunk — 2022-10-25
• Sailor, in slang — 2022-10-19
• La Brea ___ Pits (Los Angeles attraction) — 2022-09-26
• Asphalt component — 2022-08-14
• Gob — 2022-01-27
• Stuff in cigarettes, but not e-cigarettes — 2022-01-02
• Describe in a negative way — 2021-10-10
• Sticky stuff — 2021-09-08
• Besmirch — 2021-05-05