Author Struther (3 letters)

Three-time A.L. batting champ (5 letters)

"Onward!," in Italy (6 letters)

___ nova (samba music) (5 letters)

Radical org. in the 60's (3 letters)

Texas city on the Rio Grande (6 letters)

___ May Clampett of 1960s TV (4 letters)

Kind of eclipse (5 letters)

Moon-ldg. unit (3 letters)

Units to be subdivided (5 letters)

Kind of pipe (5 letters)

Essence (4 letters)

Vice president Stevenson (5 letters)

"Rugrats" dad (3 letters)

Baseball family name (4 letters)

Aussie tennis champ Fred (6 letters)

Second SAC chief (5 letters)

Shad ___ (3 letters)

Emulate Mark Spitz (4 letters)