Possible Clues:

• Writ requiring person to appear in court
• Bachelor writer in paper served with a writ
• Bus-lane diversion around post-office novice driver ignored? Summons follows!
• Command to appear in court
• A summons to attend court case
• Write ordering someone to court
• Alternative Gothic writer returns an invitation one can't refuse
• Exotic bean soup that may be served legally
• Base upon (anag) – court order
• Summons a vehicle back across open ground