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

altarthe table in Christian churches where communion is given
laharan avalanche of volcanic water and mud down the slopes of a volcano
arhata Buddhist who has attained nirvana
talar
artala unit of weight used in some Moslem countries near the Mediterranean; varies between one and five pounds
ratal

haltthe state of inactivity following an interruption
hartUnited States playwright who collaborated with George S. Kaufman (1904-1961)
rath
talathe basic unit of money in Western Samoa
latha narrow thin strip of wood used as backing for plaster or to make latticework
harl
alara chemical sprayed on fruit trees to regulate their growth so the entire crop can be harvested at one time
haar
tahr

artthe products of human creativity; works of art collectively
aahexpress admiration and pleasure by uttering `ooh' or `aah'
hatheaddress that protects the head from bad weather; has shaped crown and usually a brim
ratany of various long-tailed rodents similar to but larger than a mouse
aha
tarany of various dark heavy viscid substances obtained as a residue
rah
lar
alaa flat wing-shaped process or winglike part of an organism
lata broad flat muscle on either side of the back
altangular distance above the horizon (especially of a celestial object)
aal

ata highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
ah
ha(astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day
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
ara colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
aaa dry form of lava resembling clinkers

HARTAL