Clara always wears an unidentified thin brown belt with them. I don't know much about these; I can't even tell if they're navy or black.
Worn in: The Snowmen (outfit #3), The Bells of St. John (outfit #2), Doctor Who Proms Minisode.
The Kooples Velvet Pocket Pants
Can I just say: Clara's first pair of actual pants. Moving on, they are the matching pair for the Kooples blazer she wears in the same episode. The color is a bit controversial, but I believe it is called Eggplant.
Worn in: Season 8 Episode 5
Topshop Scallop Hem Shorts
They made this in Tall and Petite versions. ASOS has very good alts available as well as other places.