[spoiler='10. Run past 1,000 before a backed up southern river restricted me at the race. (9)
Attempt at No.10..']1,000 = D
Before = Be Four = 4 = IV
a = "Eh!"= E
southern river = SR; backed up = RS.
me = I
at the race. = In with a chance = ON
RUN PAST = DIVERSION?