Is fitch a word in the Scrabble Dictionary

Yes, fitch is playable

...and is worth 13 points.

Found in the following dictionaries

Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)

"Fitch" Definition

noun

See polecat.
The fur of this animal.
The fur or pelt of the polecat.

biographical name

(William) Clyde 1865–1909 Am. dram.
John 1743–1798 Am. inventor.
Val Logsdon 1923–     Am. physicist.