4.
Bill ___, TV's Science Guy
13.
Who you call from the side of the highway
14.
Bar patron's request, with "the"
15.
Letter of the greek alphabet
22.
McGwire's onetime home-run rival
24.
"You could've knocked me over with a feather!"
29.
Benedictine monks' titles
38.
This can be acute or obtuse
45.
Wear on, as the nerves
48.
One hundred fifty-five