The term 'Word in an O'Neill Title' refers to three words found in the titles of plays written by American playwright Eugene O'Neill. The solutions to this crossword are ICEMAN (6 letters), ELMS (4 letters) and HAIRY (5 letters). ICEMAN is a reference to O'Neill's play 'The Iceman Cometh', which tells the story of a group of down-and-out alcoholics in a bar in New York City. ELMS is a reference to O'Neill's play 'Strange Interlude', which follows the life of a woman named Nina Leeds over the course of several decades. Finally, HAIRY is a reference to O'Neill's play 'The HAIRY Ape', which follows the story of a sailor who is struggling to find his place in society.