Add the chickpeas, onion, carrots, diced tomatoes, garlic, cumin, cinnamon, paprika, ginger, apricots, and vegetable broth to the slow cooker. Stir to combine.
Cover and cook on low for 6 hours or on high for 3 hours until the carrots are tender.
About 10 minutes before serving, bring 1 cup water to a boil in a small saucepan. Stir in the couscous, cover, and remove from heat. Let it sit for 5 minutes, then fluff with a fork.
Spoon the couscous into bowls and top with the chickpea tagine. Sprinkle with chopped cilantro and serve with lemon wedges.