Answer:

checker

Answer	Crossword Clue
CHECKER	Board member?
CHECKER	Board game piece
CHECKER	Chubby who gave us "The Twist"

CHECKER	Restaurant worker.
CHECKER	Square.
CHECKER	King, for one
CHECKER	King, maybe
CHECKER	One of two that makes a king?
CHECKER	One of 24 game pieces

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.