Possible Clues:

• Crowe's role in 'A Beautiful Mind'
• Musician with Crosby, Stills and Young
• "I'm a Stranger Here Myself" poet
• "Claws" actress Niecy
• Sir Walter --, prime minister of New Zealand (1957-60)
• Ogden --, US writer and lyricist 1902-71
• Johnny --, US singer-songwriter best known for his 1972 hit 'I Can See Clearly Now'
• Collaborator of Crosby, Stills and Young
• Writer Ogden
• Ogden who wrote, "The cow is of the bovine ilk; One end is moo, the other, milk"