“PSHAW” is a valid word. — 13 points Scrabble

washa thin coat of water-base paint
shawUnited States clarinetist and leader of a swing band (1910-2004)
swapan equal exchange
pawsa clawed foot of an animal especially a quadruped
waspa white person of Anglo-Saxon ancestry who belongs to a Protestant denomination
hapsan accidental happening
whaphit hard
pash
haspa fastener for a door or lid; a hinged metal plate is fitted over a staple and is locked with a pin or padlock
hawsa spring-flowering shrub or small tree of the genus Crataegus
waps

washave the quality of being; (copula, used with an adjective or a predicate noun)
hashave or possess, either in a concrete or an abstract sense
sawa condensed but memorable saying embodying some important fact of experience that is taken as true by many people
ashthe residue that remains when something is burned
wha
spaa health resort near a spring or at the seaside
pas(ballet) a step in dancing (especially in classical ballet)
pawa clawed foot of an animal especially a quadruped
sapa watery solution of sugars, salts, and minerals that circulates through the vascular system of a plant
sha
hapan accidental happening
hawa spring-flowering shrub or small tree of the genus Crataegus
pah
aspof southern Europe; similar to but smaller than the adder
wap

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
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
aw
paan informal term for a father; probably derived from baby talk
sh

PSHAW