Possible Clues:

• Type of narcissus
• Yellow flower
• Species of narcissus with long fragrant yellow or white flowers
• Hue named after a yellow flower
• A bloomer, one abandoning ally and old writer, virtually
• Name used colloquially for any yellow daffodil
• Judge taking in old writer almost makes a bloomer
• Colour named after a yellow flower
• Flower Juliet stuck to detailed duvet
• How the blooming boy gets an old pen, by the sound of it