The Crafty Crow is a fantastic pub with real ale, craft beers, cider and other high quality drinks (no big brands). There generally have two real ales on tap that are labelled vegan (see the 'V' on the pump clips). They also do food with limited vegan options.
The Crafty Crow is located opposite the Castle entrance on Friar Lane in the building that used to be the BZR bar.
There are steps to the front door but level access is just around the corner on Standard Hill.