18: Treat a pledge poorly
37: Held up, as a heavy weight
43: Takes a tumble, at times
45: Puts on the hard drive
47: It may be passed on the Hill
55: Showing inventiveness and skill
60: Connery and Moore, e.g.
63: They often clog the major arteries
67: Make a sweater, perhaps
71: Masher's comeuppance, maybe