15: Joseph had one of many colors
20: 'Farewell, François!'
25: Highway construction markers
27: Letters on a keyboard key
30: Word before sheet or session
43: Job for a grease monkey
46: Cut in half, as a log
54: Title for Edith Evans
56: Flippered fish fancier
58: Incidentally, in Netspeak
64: Amphibian screwdrivers and such?
68: Merrill Lynch's bull, e.g.