Answer:

meteor

Answer	Crossword Clue
METEOR	Power source for the first Green Lantern
METEOR	Hot streak?
METEOR	Streaker

METEOR	Astronomical streaker
METEOR	Shooting star
METEOR	Metaphor for overnight success
METEOR	Shower component
METEOR	Metaphor for a blazing success
METEOR	Part of some showers
METEOR	Streaker at night
METEOR	Metaphor for a sudden success

METEOR	Astronomical sighting
METEOR	Luminary in a late-night show?
METEOR	Hunk noted for streaking
METEOR	One seen in a shower
METEOR	Streaker with a tail
METEOR	Overnight success
METEOR	Falling star
METEOR	Shower part

METEOR	Part of a shower scene?
METEOR	Earth threatener
METEOR	Shower participant?
METEOR	Temporary skylight?
METEOR	Kind of shower
METEOR	Telescopist's sighting