Pen name of legendary sportswriter Charles James Apperley (6)
I believe the answer is:
nimrod
(Other definitions for nimrod that I've seen before include "Skilful hunter (Genesis)" , "Old hunter" , "Mighty Biblical ruler, said to have built Tower of Babel" , "Elgar Enigma variation; D minor (anag.)" , "'Mighty Biblical ruler, builder of the Tower of Babel (6)'" .)