Possible Clues:

• Consumer after small women's knitted garment
• Sew tear ruining garment
• Top perspirer
• Might one be too warm wearing this?
• Warming wear
• Jersey may become rainier, some say, after end of holidays
• Jumper's state of anxiety about going upside down
• Trademark for Mr. Rogers
• Garment for person who's cold, or one who's hot?
• Cardigan or pullover