Related Clues:

• Move swiftly
• Waterspout
• Dark hue
• Deep black, in poesy
• Dark, in some poems
• Bone anagram
• Key wood
• Poet's color
• Black hardwood
• Dark wood
• Rook relative
• "Heaven's __ vault, studded with stars ...": Shelley
• Go really fast
• Dreamliner, for one
• Piano-key wood