Treatment found as others smoke (4,4)
I believe the answer is:
rest cure
'treatment' is the definition.
(I know that rest-cure is a type of treatment)
'as others smoke' is the wordplay.
I cannot quite see how this works, but
'others' could be 'rest' (I've seen this in another clue) and 'rest' is present in the answer.
'smoke' could be 'cure' (I've seen this in other clues) and 'cure' is found within the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'found' is the link.
Can you help me to learn more?
(Other definitions for rest cure that I've seen before include "Prolonged period of relaxation as medical treatment" , "Period of inactivity aiding health" , "Prolonged period in bed for recuperation" , "Type of treatment" , "Treatment involving peace and quiet" .)