Possible Clues:

• She brought eternal winter to Arendelle, in "Frozen"
• Disney’s snow queen
• The "you" of "Do You Want To Build a Snowman?"
• Boris's "bride" of 1935
• Wagner's ___ of Brabant
• Sister who sings "Into the Unknown" in "Frozen II"
• Novelist Morante
• Disney heroine whose sister is beguiled by 8-Down
• Lioness (born free in Kenya)
• 'Frozen' character who sings 'Let It Go'