Yes, SHOUTED is a Scrabble word!

Letter values in Scrabble US: S 1, H 4, O 1, U 1, T 1, E 1, D 2.

Is it a valid word?

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

utter in a loud voice; talk in a loud voice (usually denoting characteristic manner of speaking)
utter a sudden loud cry
utter aloud; often with surprise, horror, or joy
use foul or abusive language towards

Also: shout out, cry out, call out.