Answer: viking

AnswerCrossword Clue
VIKING

Monarch chasing the sixth Norse warrior (6)

VIKING

First mission to land probes on the surface of Mars

VIKING

Ancient pirate

VIKING
Minnesota footballer
VIKING
Guy in a horned helmet
VIKINGSea rover of the Middle Ages.
VIKINGSea rover.
VIKINGPirate.
VIKINGHagar of the comics, e.g.
VIKINGOne on a longship
VIKINGLongship sailor