Yes, DIRECTION is a Scrabble word!

Letter values in Scrabble US: D 2, I 1, R 1, E 1, C 3, T 1, I 1, O 1, N 1.

Is it a valid word?

DIRECTION is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

a line leading to a place or point
the spatial relation between something and the course along which it points or moves
a general course along which something has a tendency to develop
something that provides direction or advice as to a decision or course of action
the act of managing something
a message describing how something is to be done
the act of setting and holding a course
a formal statement of a command or injunction to do something
the concentration of attention or energy on something

Also: focal point.