1d. Could be Anderson without a wicket starting over(6)
Themed, James Anderson(cricketer)
13a. Freedom that's tolerated to excess(7)
double defn..freedom/abuse of freedom
2d. Astronaut turns up and covers the ground again(6)
Genderless word for astronaut - going up
53a. Old charioteer lost heart(6)
themed...links to 50A