6 letter words:
clefts11,
5 letter words:
clefs10,
cleft10,
felts8,
lefts8,
celts7,
4 letter words:
clef9,
efts7,
felt7,
fest7,
fets7,
left7,
self7,
cels6,
celt6,
sect6,
lest4,
lets4,
tels4,
3 letter words:
efs6,
eft6,
elf6,
fes6,
fet6,
cel5,
sec5,
els3,
les3,
let3,
sel3,
set3,
tel3,
2 letter words:
ef5,
fe5,
el2,
es2,
et2,