Yes, SUCCORY is a Scrabble word!

Letter values in Scrabble US: S 1, U 1, C 3, C 3, O 1, R 1, Y 4.

Is it a valid word?

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

perennial Old World herb having rayed flower heads with blue florets cultivated for its root and its heads of crisp edible leaves used in salads

Also: chicory plant, cichorium intybus.