“FETTERER” is a valid word. — 11 points Scrabble

ferretmusteline mammal of prairie regions of United States; nearly extinct
reefermarijuana leaves rolled into a cigarette for smoking
teetera plaything consisting of a board balanced on a fulcrum; the board is ridden up and down by children at either end
fettera shackle for the ankles or feet
terret
tereteespecially of plant parts; cylindrical and tapering

freepeople who are free
feetthe part of the leg of a human being below the ankle joint
treea tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms
reefa submerged ridge of rock or coral near the surface of the water
fretagitation resulting from active worry
fetean elaborate party (often outdoors)
fere
retea network of intersecting blood vessels or intersecting nerves or intersecting lymph vessels
trefnot conforming to dietary laws
reftsteal goods; take as spoils
tret

feea fixed charge for a privilege or for professional services
ere
teethe starting place for each hole on a golf course
errto make a mistake or be incorrect
ref(sports) the chief official (as in boxing or American football) who is expected to ensure fair play
fer
tetthe New Year in Vietnam; observed for three days after the first full moon after January 20th
ree
feta transistor in which most current flows in a channel whose effective resistance can be controlled by a transverse electric field
efta newt in its terrestrial stage of development
retplace (flax, hemp, or jute) in liquid so as to promote loosening of the fibers from the woody tissue

era trivalent metallic element of the rare earth group; occurs with yttrium
rea rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
et
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FETTERER