Yes, TUFTED is a Scrabble word!

Letter values in Scrabble US: T 1, U 1, F 4, T 1, E 1, D 2.

Is it a valid word?

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

(of plants) growing in small dense clumps or tufts
having or adorned with tufts
(of a bird or animal) having a usually ornamental tuft or process on the head; often used in combination

Not playable in Scrabble US: TOPKNOTTED.