Possible Clues:

• Kidlit character with a pet turtle named Skipperdee
• Fictional girl who says 'I go to all the weddings in the White and Gold room and I usually stay for the reception'
• Plaza resident of fiction
• Children's writer Greenfield
• Mumford of "Fifty Shades of Grey"
• Woman's name that becomes another woman's name if you cut the first and last letters
• Fictional resident of the Plaza's 'tippy-top floor'
• The 'E' of S.E. Hinton
• Character who says 'Sometimes I have a temper fit'
• Plaza Hotel terror