Prescribed treatment unfinished we hear (6)
I believe the answer is:
course
'prescribed treatment' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe there's a link between them I don't understand?
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for course that I've seen before include "Pursue - career - run - series of lectures" , "Path along which something moves" , "soup?" , "Routine progress" , "Source (anag.)" .)