Related Clues:

• Go unsteadily about vehicle — one needs four feet
• I have four feet, but am unsteady around vehicle
• Move unsteadily when crossing tram lines
• Move precariously around vehicle that's four feet long
• Move unsteadily around vehicle in a sort of line
• Four-footed form of vehicle to wobble about
• Characters in retreat organised, having got together in a sort of line
• One has four feet, is encountered in wild retreat
• Arrangement of feet, having to stagger round vehicle
• Vehicle passes through rock in a line