“CARLS” is a valid word. — 7 points Scrabble

carsa motor vehicle with four wheels; usually propelled by an internal combustion engine
carl
scara mark left (usually on the skin) by the healing of injured tissue
lars
lacsresinlike substance secreted by certain lac insects; used in e.g. varnishes and sealing wax
arcselectrical conduction through a gas in an applied electric field

cara motor vehicle with four wheels; usually propelled by an internal combustion engine
las
sal
arcelectrical conduction through a gas in an applied electric field
sacan enclosed space
lacresinlike substance secreted by certain lac insects; used in e.g. varnishes and sealing wax
alsthickening of tissue in the motor tracts of the lateral columns and anterior horns of the spinal cord; results in progressive muscle atrophy that starts in the limbs
lar
rasthe network in the reticular formation that serves an alerting or arousal function
ars

asa very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar
laa white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
ala silvery ductile metallic element found primarily in bauxite
ara colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere

CARLS