Yes, my clue does seem to be too confusing, doesn't it?
You are both on the right track with your reasoning, but not with your answers. The clue refers, literally, to an avian advisor.
Mettare is correct with "endless", and dancing spawn is correct with the synonymous "sea". This gives you the instructions for solving the cryptic clue. Endless modifies the road, and one hears "sea" not "ocean". Is this sufficient, or is another hint required?