Yes, VELLICATE is a Scrabble word!

Letter values in Scrabble US: V 4, E 1, L 1, L 1, I 1, C 3, A 1, T 1, E 1.

Is it a valid word?

VELLICATE is a valid word in the official Scrabble dictionary (US) and the UK Scrabble Dictionary, but not in Words with Friends (ENABLE).

touch (a body part) lightly so as to excite the surface nerves and cause uneasiness, laughter, or spasmodic movements
irritate as if by a nip, pinch, or tear