Premium Bonds computer (5)
I believe the answer is:
ernie
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">premium bonds computer</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ernie that I've seen before include "Machine that randomly selects Premium Bond winners" , "It picks Premium Bond winners" , "Bondsman" , "Guy" , "One regularly drawing" .)