"The ... Cometh" (Eugene O'Neill) (6)
I believe the answer is:
iceman
(Other definitions for iceman that I've seen before include "eugene o'neill play'the......cometh'" , "'The ------ Cometh', 1939 play by Eugene O'Neill" , "Eugene O'Neill's figure of 'death' (the one who cometh!)" , "assassin" , "Cold character in cinema" .)