Yes, SYNCARPS is a Scrabble word!

Letter values in Scrabble US: S 1, Y 4, N 1, C 3, A 1, R 1, P 3, S 1.

Is it a valid word?

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

fruit consisting of many individual small fruits or drupes derived from separate ovaries within a common receptacle: e.g. blackberry; raspberry; pineapple

Also: aggregate fruit, multiple fruit.