Related Clues:

• It's a snap
• Brad, e.g.
• Brad, for one
• Velcro, for instance
• Clip, catch or other means of fixing securely
• Device that closes clothes - may be a zip
• Device for joining things together
• Does that fix it so that one can accelerate?
• That's what'll make one zip along at a greater 15 across
• Seems as if the accelerator will stop one moving
• That may make it go more quickly or make it stay put
• See 23
• Fellow takes nearest roundabout to Pinner
• Clipper's quicker rounding two points
• Pin, popper or zip, perhaps