Related Clues:

• Small item included in examination dealing with planetary motion
• Revolutionary books, all there at the borders
• Rubbish a politician’s spinning
• Said about piece going round
• It relates to an overview of The Sun and the path taken in a roundabout way
• Part of bridle gripped by the mouth's going round
• Test covers part of town bypass perhaps
• Relating to a planetary path
• Relating to a satellite's track
• The M25, for example — what may be said about small section?
• Revolutionary, in a way
• Sort of road test after component has been installed
• Round button originally secured by tailor that's loose
• Like a revolution in space travel
• Ringroad has part that’s got spoken about