Possible Clues:

• Andrew —, poet
• Poet having something wonderful with extra line
• Andrew —, Metaphysical poet
• Andrew -, poet
• Andrew -, English metaphysical poet
• Andrew -, seventeenth century English poet
• Poet has to wonder when line is repeated
• English metaphysical poet Andrew
• Andrew -, English poet
• Be amazed by line he wrote to coy mistress