Hope these haven't been asked for before - certainly couldn't find them.
12. In Enid's story she won a pirate in a raffle (6,5)
14. Age 10 he watched his father take humankind's first steps on Mars
(7,7/4,8)
37. Son of 2 rocket scientists and husband of a cellist (4,5)
55. "I'll have to hurry you." (6,9)