Yes, PARRIES is a Scrabble word!

Letter values in Scrabble US: P 3, A 1, R 1, R 1, I 1, E 1, S 1.

Is it a valid word?

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

impede the movement of (an opponent or a ball)
avoid or try to avoid fulfilling, answering, or performing (duties, questions, or issues)

Also: put off.