2: Brandon, Bruce and Brenda
3: Geological time periods
4: Candidate with backing, say
7: What the fourth little piggy had
10: Lubrication container
22: Top hat accompaniment
31: Preceder of box or light, in slang
39: Where to find a browser
43: Didn't come home standing up
46: Bunsen ___ (lab device)
50: Either of the racing Earnhardts
52: Grocery shopper's reference
55: Hoof-on-pavement sound