Yes, CATCHER is a Scrabble word!

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

Is it a valid word?

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

(baseball) the person who plays the position of catcher
the position on a baseball team of the player who is stationed behind home plate and who catches the balls that the pitcher throws