Possible Clues:

• Johnny Winter's sax-playing brother
• Disguised son in "King Lear"
• Whodunit writers' award
• He spoke for Mortimer
• Earl's son and daughter, in a fashion, flipped
• Poor Tom in untended garden
• Old king failing to make the grade
• Literary prize
• Honor for Eric Ambler
• Mad Gerda, a character in King Lear