WCAG by craft
Here are all the guidelines grouped by craft.
To be clear, accessibility is not a checklist or a tool, and doing everything exacly as documented here will not always guarantee an accessible, or compliant site. It's important to note that how you deliver accessibility is unique and completely dependant on your particular site content, and users.
Design
All the guidelines that designers are responsible for. You'll be suprised, it's more than just color contrast or font size. Beware! Whatever you ignore, your developer will make up on their own.
Content
Guidlines for the content designers/writers of the group. Put that English major to work!
Developer
All guidelines that developers are responsible for. These can easily overlap with design and content guidelines, so make sure you are all working together.