& 1A Mountaineer on the 1924 British Mount Everest expedition whose body was discovered in 1999 (6,7) (6)
I believe the answer is:
george
(Other definitions for george that I've seen before include "Automatic pilot (sl.)" , "England's patron saint" , "Name of six British kings" , "Flight controller" , "Best Actor Oscar winner 1970, for 'Patton'" .)