Words formed from any letters in treader plus optional blank

c -

traced₁₀

tracer₉

d -

traded₈

h -

thread₉

i -

tiered₇

tirade₇

s -

terser₆

trades₇

treads₇

t -

terret₆

tetrad₇

u -

ureter₇

w -

warder₁₀

warred₁₀

warted₁₀

wearer₉