Yes, RECLAIMED is a Scrabble word!

Letter values in Scrabble US: R 1, E 1, C 3, L 1, A 1, I 1, M 3, E 1, D 2.

Is it a valid word?

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

claim back
reuse (materials from waste products)
bring, lead, or force to abandon a wrong or evil course of life, conduct, and adopt a right one
make useful again; transform from a useless or uncultivated state
overcome the wildness of; make docile and tractable

Not playable in Scrabble US: DOMESTICIZE, DOMESTICISE.