Yes, WRYNECK is a Scrabble word!

Letter values in Scrabble US: W 4, R 1, Y 4, N 1, E 1, C 3, K 5.

Is it a valid word?

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

an unnatural condition in which the head leans to one side because the neck muscles on that side are contracted
Old World woodpecker with a peculiar habit of twisting the neck