Yes, RECALL is a Scrabble word!

Letter values in Scrabble US: R 1, E 1, C 3, A 1, L 1, L 1.

Is it a valid word?

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

a request by the manufacturer of a defective product to return the product (as for replacement or repair)
a call to return
a bugle call that signals troops to return
the process of remembering (especially the process of recovering information by mental effort)
the act of removing an official by petition

recall knowledge from memory; have a recollection
go back to something earlier
call to mind
summon to return
cause one's (or someone else's) thoughts or attention to return from a reverie or digression
make unavailable; bar from sale or distribution
cause to be returned

Also: call back, call up, hark back, come back, call in.