Yes, MANOEUVRING is a Scrabble word!

Letter values in Scrabble US: M 3, A 1, N 1, O 1, E 1, U 1, V 4, R 1, I 1, N 1, G 2.

Is it a valid word?

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

act in order to achieve a certain goal
direct the course; determine the direction of travelling
perform a movement in military or naval tactics in order to secure an advantage in attack or defense

Not playable in Scrabble US: MANOEUVER, CHANNELISE.