Answer:

POLARIS

Answer	Crossword Clue
POLARIS	Star in Ursa Minor
POLARIS	North Star
POLARIS	Guiding light

POLARIS	Part of the Little Dipper's handle
POLARIS	Mariner's guiding light
POLARIS	Ursa Minor star
POLARIS	What the stars known as Pointers point to
POLARIS	The North Star
POLARIS	Bright light in the sky
POLARIS	Little Dipper star
POLARIS	Underwater ICBM

POLARIS	Underwater missile
POLARIS	American missile
POLARIS	US missile
POLARIS	Bright star
POLARIS	Navigation aid
POLARIS	Alpha Ursae Minoris
POLARIS	Spenser's "steadfast star"
POLARIS	Light at the end of a well-known handle

POLARIS	North Star.
POLARIS	Brightest star in Ursa Minor.
POLARIS	Guiding star.
POLARIS	The North Star.
POLARIS	Alpha Ursae Minoris.
POLARIS	End of handle of Little Dipper.
POLARIS	Something to steer by.
POLARIS	Navy's new atomic missile.

POLARIS	Seaman's guide.
POLARIS	Navy weapon.
POLARIS	Star in Ursa Minor.
POLARIS	Missile launched from ocean floor.
POLARIS	Missile.
POLARIS	Missile fired from under water.
POLARIS	One of the rockets.
POLARIS	Tail of Ursa Minor.

POLARIS	U.S. missile
POLARIS	Stella ...
POLARIS	Part of Ursa Minor
POLARIS	U.S.N. missile
POLARIS	Ursa Minor cynosure