Pyle or Banks
I believe the answer is:
ernie
'pyle or banks' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ernie that I've seen before include "Computer selecting Premium Bond winners" , "Eric Morecambe & - - Wise" , "Premium Bond picker" , "It picks Premium Bond winners" , "Selector of winning premium bond numbers" .)