Burn up the road' is an idiom that means to drive quickly and recklessly. It is often used to describe someone who is driving in a dangerous manner, usually at high speeds. The crossword solutions for this term are TEAR and SPEED. TEAR implies that the driver is going so fast that they are tearing up the road, while SPEED implies that the driver is going faster than the SPEED limit. Together, these two words capture the essence of the phrase 'burn up the road.'