Yes, DIRECTING is a Scrabble word!

Letter values in Scrabble US: D 2, I 1, R 1, E 1, C 3, T 1, I 1, N 1, G 2.

Is it a valid word?

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

command with authority
intend (something) to move towards a certain goal
guide the actors in (plays and films)
be in charge of
take somebody somewhere
cause to go somewhere
point or cause to go (blows, weapons, or objects such as photographic equipment) towards
lead, as in the performance of a composition; Barenboim conducted the Chicago symphony for years"
give directions to; point somebody into a certain direction
specifically design a product, event, or activity for a certain public
direct the course; determine the direction of travelling
put an address on (an envelope)
plan and direct (a complex undertaking)

Also: take aim.

Not playable in Scrabble US: MANOEUVER, CHANNELISE.