Possible Clues:

• With a light brown surface, as a beach
• Edges of Selsey beach may be described thus
• Gritty characters in boats and yachts
• 'Hopelessly Devoted to You' singer in 'Grease'
• Like a beach or desert surface
• Dunelike
• Like every good beach
• Alexander has opinion about nude seen here and there
• Like dunes and beaches
• Character played by Olivia Newton-John in Grease