If he has all of his trick arrows then yes he clears it.
1. Two-Face - H2H will do it
2. The Riddler - Same as above
3. Killer Croc - Sonic arrow
4. Clay face - Freeze arrows
5. Mr. Freeze - I can't remembe if he has simple "heat"arrows but he does have a really explosive and damaging arrow that he usually only carries one of. That'll do it here
6. The Riddler - H2H
7. The Joker - H2h
8. Poison Ivy - Ice arrow/Sword to cut down vines.
I think he can clear it. If he only gets standard arrows then i say he doesn't make it past Clayface
I'd say he does. Im pretty sure he carries around a pretty wide variety of arrows. I'm not sure about the sonic arrows, though, but he's pretty resourceful, he would think of something.