One ordered to be silent (8)
I believe the answer is:
trappist
'one' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for trappist that I've seen before include "One of an austere and silent order" , "Past trip (anag.)" , "Member of an order of monks noted for austerity and silence" , "Quiet Man" , "Austere (and silent) monk" .)