Yes, PITCHER is a Scrabble word!

Letter values in Scrabble US: P 3, I 1, T 1, C 3, H 4, E 1, R 1.

Is it a valid word?

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

(baseball) the person who does the pitching
an open vessel with a handle and a spout for pouring
the quantity contained in a pitcher
(botany) a leaf that that is modified in such a way as to resemble a pitcher or ewer
the position on a baseball team of the player who throws the ball for a batter to try to hit