Yes, SCATTED is a Scrabble word!

Letter values in Scrabble US: S 1, C 3, A 1, T 1, T 1, E 1, D 2.

Is it a valid word?

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

Also: turn tail, run away, hightail it, head for the hills, take to the woods, fly the coop, break away.