1: Masher's comeuppance, maybe
15: 'Jump, Jive, an' Wail' composer/bandleader Louis
20: Mattress-supporting frameworks
26: Choose the window instead of the aisle?
44: Like any number finishing with '9'
50: Balance sheet positive
65: 'Spenser: For ___' (Urich series)
67: Small game with big ears
68: Cheese with a red coat
70: Signs for Nostradamus