Possible Clues:

• Nothing modern on a yard relates to a mirror
• '___ or Another' (Blondie song)
• Speaker's prevailed, to evaluate not allowing debate?
• There's no turning back!
• Words inside an arrow
• Type of street in which traffic can travel in a single direction
• We stay on plan to protect green growth — no turning back here
• Like Lexington Avenue
• Of a system where there's no turning back?
• Like some windows