Possible Clues:

• One step up from the gutter
• Limit of pedestrianism
• By the way, you'll find one broken and set out
• Restriction on pavement artist's work hampers style, so to speak
• Pavement edge
• Repair broken set that's set by the road
• Token Serb butcher with block that's a step up from the rest by the way
• Edging along the pavement
• Summertime: one following royal couple — it's hard, by the way
• Silly berk with love nest by the way