Correct, precise (8)
I believe the answer is:
accurate
I believe this clue is a double definition.
'correct' is the first definition.
(similar in meaning)
'precise' is the second definition.
(associated in meaning)
(Other definitions for accurate that I've seen before include "Meticulous" , "Care a cut is exact" , "Correct, free of error" , "Exactly right" , "Correct, right" .)