Possible Clues:

• Popular baby girl name
• Gardner of 'The Snows of Kilimanjaro'
• Ms Gardner
• - - Gardner (films)
• "When They See Us" creator DuVernay
• Palindromic first name
• 'Abbott Elementary' principal
• Director DuVernay of 'Selma'
• DuVernay who directed "13th"
• 'I Will Follow' director DuVernay