Clues starting with V 7 clues

• Velvety-tasting, like a carbonara 6 letters
• Venomous British snakes with zig-zag patterns 6 letters
• Very long time: "a __ of Sundays" 5 letters
• __ Vincent, pop star with real name Annie Clark 2 letters
• Vision in one's sleep 5 letters
• Visual disturbance that may accompany a migraine 4 letters
• Vocal improvisation in jazz singing 4 letters