Yes, FAWNERS is a Scrabble word!

Letter values in Scrabble US: F 4, A 1, W 4, N 1, E 1, R 1, S 1.

Is it a valid word?

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

someone who humbles himself as a sign of respect; who behaves as if he had no self-respect

Also: apple polisher.