The term ROAD SURFACE GOO is a combination of two words, 'ROAD' and 'surface goo'. The first word, 'ROAD', refers to a paved way for vehicles to travel on. The second word, 'surface goo', is an informal term for a type of material used to provide a smooth and durable surface for roads. The crossword solution for this term is TAR, which is an abbreviation for TAR-and-chip, a type of ROAD surfacing material made from a mixture of asphalt and stone chips. TAR-and-chip is a popular choice for ROAD surfacing due to its durability and cost-effectiveness.