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

lastthe temporal end; the concluding time
salta compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
slamwinning all or all but one of the tricks in bridge
malta milkshake made with malt powder
masta vertical spar for supporting sails
matsa thick flat pad used as a floor covering
almsmoney or goods contributed to the poor
latsthe basic unit of money in Latvia
tamsa woolen cap of Scottish origin
slata thin strip (wood or metal)
altsangular distance above the horizon (especially of a celestial object)
lamsa rapid escape (as by criminals)

satthe seventh and last day of the week; observed as the Sabbath by Jews and some Christians
las
sal
lama rapid escape (as by criminals)
mata thick flat pad used as a floor covering
tama woolen cap of Scottish origin
mas
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
lata broad flat muscle on either side of the back
altangular distance above the horizon (especially of a celestial object)
tas

ata highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
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
ama radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms
mainformal terms for a mother
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
taa hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite

SMALT