Answer:

SPEEDED

Answer	Crossword Clue
SPEEDED	Helped, old-style
SPEEDED	Went too fast
SPEEDED	Stepped on it, with "up"

SPEEDED	Risked a fine
SPEEDED	Laid rubber
SPEEDED	Zipped
SPEEDED	Helped along
SPEEDED	Got faster, with "up"
SPEEDED	Hastened, with "up"
SPEEDED	Hastened.
SPEEDED	Helped onward.

SPEEDED	Promoted.
SPEEDED	Expedited.
SPEEDED	Accelerated (with "up").
SPEEDED	Wasted gasoline
SPEEDED	Expedited
SPEEDED	Went 80, say

Crossword

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