Possible Clues:

• Offensively self-assertive
• Shape Mobius put forward
• Arrogant
• Self-important ne'er-do-well: rubbish I spout
• What we think of as collision will involve one unduly pushy
• Being arrogant, I'm up to changing in public transport
• Uppity tramp, devout, hogging entrance to temple
• Seat up, so it moves forward
• Irritatingly self-assertive
• Start with a knock if you wish the be assertive