Explicit, particular (8)
I believe the answer is:
specific
This clue is a double definition.
'explicit' is the first definition.
(I've seen this in another clue)
'particular' is the second definition.
(I know that particular can be written as specific)
(Other definitions for specific that I've seen before include "Precise, clearly defined" , "Well-defined" , "remedy" , "Precise, not vague" , "Definitive or exact" .)