Answer:

pioneered

Answer	Crossword Clue
PIONEERED	Got the ball rolling
PIONEERED	Led the way
PIONEERED	Blazed a trail

PIONEERED	Trailblazed
PIONEERED	Started with pi + 1 before 500 (9)
PIONEERED	Spearheaded

Crossword

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