Yes, SPITTLES is a Scrabble word!

Letter values in Scrabble US: S 1, P 3, I 1, T 1, T 1, L 1, E 1, S 1.

Is it a valid word?

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

a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth; moistens the mouth and starts the digestion of starches