4: Interstellar space clouds
32: 'The Washington Post' or 'Seventy-Six Trombones'
42: Pronounce indistinctly
43: Subdivision divisions
44: Confirms, as a court ruling
46: Word with front-end or muzzle
47: Sisters of Greek myth
55: 'Spenser: For ___' (Urich series)
56: Where cookies might crumble