Possible Clues:

• Matching clothes in Tweedledum and Tweedledee film?
• Classy pair seen on some women
• A jumper is part of a two-part, placed after two
• Matching ensemble extraterrestrial brought from Gemini?
• Matching tops, maybe
• For her there's two of them placed with a jumper on top
• Success in backing match for garments
• there's two of it, and Jersey is part of it
• Charlie around nose, nothing less, in ladies' outfit
• Cardigan and pullover combo