Possible Clues:

• Reckless driver
• Bully driving animal under carriageway
• Go hard all over the place, let nothing in - this driver?
• Reckless driver had crashed in run or in reverse
• Driver who obstructs others
• Go hard round bends, as he might
• On way home? Not me, good Mr Toad, for one
• That swine is likely to have a smashing time (4, 3)
• Selfish driver (2 words)
• Travelled on unlikely flier, we hear -- one making the journey difficult