He picks many winners (5)
I believe the answer is:
ernie
'he' is the definition.
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for ernie that I've seen before include "___ Wise, d. 1999" , "Premium Bonds selector" , "Eric Morecambe & - - Wise" , "Name given to selector" , "Machine that randomly selects Premium Bond winners" .)