Heat a Dutch oven over high heat. Coat pan with cooking spray.
Remove casings from sausage.
Add sausage to pan; cook 4 minutes or until browned, stirring to crumble. Reduce heat to medium. Stir in chopped onion and garlic; cook 1 minute, stirring occasionally.
Add Madeira; cook 1 minute or until liquid evaporates.
Add kale, salt, and chicken broth; cover, reduce heat, and simmer 15 minutes. Stir in clams and chickpeas; cook, covered, 10 minutes or until shells open. Discard any unopened shells.