NBA exec Brand (5)
I believe the answer is:
elton
'nba exec brand' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for elton that I've seen before include "Sir ___ John, singer-songwriter" , "One John" , "..... Jonn (musician)" , "- John, British singer" , "Sir - - John, singer songwriter" .)