Funnyman ____ Idle (4)
I believe the answer is:
eric
(Other definitions for eric that I've seen before include ".... the Red, Norwegian explorer who discovered Greenland in 10th century" , "---- Cantona, Manchester Utd favourite of the 1990s" , "Cantona or Clapton?" , "-- Sykes; -- Idle" , "Great Norwegian explorer .... the Red" .)