Yes, STETTED is a Scrabble word!

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

Is it a valid word?

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

printing: cancel, as of a correction or deletion
printing: direct that a matter marked for omission or correction is to be retained (used in the imperative)