Possible Clues:

• Wish for ambassador to be lacking nothing
• Grudging admiration of diplomat with nothing to lose
• Begrudge losing set seventy played
• It's a sin, depriving messenger of love
• Green person's sin
• Desire as a rival
• Loveless emissary's sin?
• Feeling of grudging admiration
• Feeling of ill-will or jealousy
• Part of a famous septet