Idle on screen (4)
I believe the answer is:
eric
'idle on screen' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for eric that I've seen before include "Great Norwegian explorer .... the Red" , "Rice turned for the boy" , "-- Sykes; -- Idle" , "Boy's name" , "Cantona or Clapton?" .)