Possible Clues:

• Feminine
• Demure, by some standards
• Duchess with large American president is the spit of her noble mother
• Genteel (not referring to gents)
• Of a woman, refined and genteel
• Appropriate to a well-mannered woman
• Typical of a well-mannered woman
• Appropriate to female decorum
• Genteel song about duke, as it were
• "Whatever your fight, don't be __": Mother Jones (labor organizer)