Related Clues:

• Threshold
• Still, to poets
• Early night, to a poet
• Adam's rib, so to speak
• When dark comes o'er the land
• Palindromic time
• Time before
• Big night
• Snake charmee
• Gloaming
• Fabric name suffix
• Adam's madam
• It follows sunset, in poetry
• Joanne Woodward Oscar-winning role
• See 39-Across