“CLAUSAL” is a valid word. — 9 points Scrabble

casualmarked by blithe unconcern
callasGreek coloratura soprano (born in the United States) known for her dramatic intensity in operatic roles (1923-1977)
causalinvolving or constituting a cause; causing
callusan area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)
sulcal

callsa telephone connection
sculla long oar that is mounted at the stern of a boat and moved left and right to propel the boat forward
callaSouth African plant widely cultivated for its showy pure white spathe and yellow spadix
cullsthe person or thing that is rejected or set aside as inferior in quality
alulascalelike structure between the base of the wing and the halter of a two-winged fly
salalsmall evergreen shrub of Pacific coast of North America having edible dark purple grape-sized berries
scall
caulspart of the peritoneum attached to the stomach and to the colon and covering the intestines

calla telephone connection
alasby bad luck
saul(Old Testament) the first king of the Israelites who defended Israel against many enemies (especially the Philistines)
casa
cullthe person or thing that is rejected or set aside as inferior in quality
lacsresinlike substance secreted by certain lac insects; used in e.g. varnishes and sealing wax
alls
caulpart of the peritoneum attached to the stomach and to the colon and covering the intestines
sall
aals

allquantifier; used with either mass or count nouns to indicate the whole number or amount of or every one of a class
las
sal
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
alaa flat wing-shaped process or winglike part of an organism
sau
aal
aasan associate degree in applied science

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
usNorth American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
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
aaa dry form of lava resembling clinkers

CLAUSAL