Answer:

giddap

Answer	Crossword Clue
GIDDAP	Get up!
GIDDAP	Word urging Dobbin.
GIDDAP	Buggy driver's command.

GIDDAP	Command to dobbin.
GIDDAP	Command to a horse
GIDDAP	Opposite of "Whoa!"
GIDDAP	Command to Dobbin
GIDDAP	Opposite of "whoa!" (Var.)
GIDDAP	Opposite of "whoa!"

Crossword

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