Answer: setsoff

AnswerCrossword Clue
SETSOFF

Starts, as a journey

SETSOFF

Ignites

SETSOFF

Embarks

SETSOFF
Leaves home
SETSOFF
Sparks
SETSOFFDetonates
SETSOFFShows to advantage.
SETSOFFDetonates.
SETSOFFStarts a journey
SETSOFFTriggers
SETSOFFActivates, as fireworks