Yes, SWINGS is a Scrabble word!

Letter values in Scrabble US: S 1, W 4, I 1, N 1, G 2, S 1.

Is it a valid word?

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

a state of steady vigorous action that is characteristic of an activity
mechanical device used as a plaything to support someone swinging back and forth
a sweeping blow or stroke
changing location by moving back and forth
a style of jazz played by big bands popular in the 1930s; flowing rhythms but less complex than later styles of jazz
a jaunty rhythm in music
the act of swinging a golf club at a golf ball and (usually) hitting it
in baseball; a batter's attempt to hit a pitched ball
a square dance figure; a pair of dancers join hands and dance around a point between them

move in a curve or arc, usually with the intent of hitting
move or walk in a swinging or swaying manner
change direction with a swinging motion; turn
influence decisively
make a big sweeping gesture or movement
hang freely
hit or aim at with a sweeping arm movement
alternate dramatically between high and low values
live in a lively, modern, and relaxed style
have a certain musical rhythm
be a social swinger; socialize a lot
play with a subtle and intuitively felt sense of rhythm
engage freely in promiscuous sex, often with the husband or wife of one's friends

Also: swing music, golf stroke, golf shot, baseball swing, swing over, swing out, get around.