Having grown up as the daughter of a weaver, Anansi has a telekinetic affinity with cloth. To halt future questions of "If Anansi can control cloth, why doesn't she just make the villain's clothes tighten and immobilize them in pain?" The truth is, she CAN control clothing, but it's very difficult when it's someone else's clothing. Neutral articles of cloth aren't too difficult, but when a piece of clothing has been worn by one person for a while it absorbs some of their essence and is harder to control. What control she can gain over someone else's clothing can't compare with the wearer's own physical strength anyway.