Answer:

base

Answer	Crossword Clue
BASE	Ballplayer's theft
BASE	Diamond corner
BASE	Headquarters

BASE	Starting point
BASE	Kind of pay
BASE	Military installation
BASE	Safari camp
BASE	Shea sack
BASE	Foundation
BASE	Knavish
BASE	Acid neutralizer

BASE	Army post
BASE	Statue's bottom
BASE	Private post?
BASE	Mean
BASE	Corner of a diamond
BASE	Corner at Fenway
BASE	Contemptible
BASE	Starting place

BASE	Immoral
BASE	Square on a diamond
BASE	Either of two sides of a trapezoid
BASE	Military fortification
BASE	Support piece
BASE	Military command center
BASE	Oft-stolen diamond item
BASE	Evil

BASE	Soldier's home
BASE	Diamond square
BASE	Army training area
BASE	First, second, or third
BASE	Stop on the way home?
BASE	Found (on)
BASE	Military training area
BASE	Word with ball or board

BASE	Slider's goal
BASE	Low
BASE	Pedestal
BASE	It may be stolen
BASE	General headquarters?