Precise remedy (8)
I believe the answer is:
specific
I believe this is a double definition.
'precise' is the first definition.
(associated in meaning)
'remedy' is the second definition.
(I've seen this before)
(Other definitions for specific that I've seen before include "Precise, not vague" , "Explicit, definitive" , "Particular, special" , "Old medicine" , "Clearly defined or identified" .)