11 down
9
run,
ace
played
after
finishing
line
(9)
9 run, ace played after finishing line (9)
hints
0
checks
0
hints
The definition is at the beginning of the clue.
How the clue works
9 is a cross-reference to the answer at 9 across (RACE), and an endurance is a type of race. The letters of "run ace" are anagrammed ("played") to give URANCE, placed after END (from "finishing line"), giving END+URANCE.