Possible Clues:

• Get a little sweet
• Charming, as a smile
• Very sweet Riesling, perhaps -- a few, not all, tucking in
• Charming setter wearing women's pants
• Fetching a few after victory
• Having a childlike charm
• Innocently engaging
• Attractive twins come to repudiate origins
• I'm so new (anag) — attractive
• Be only partially successful in looking attractive