It's good to be accurate (4)
I believe the answer is:
nice
I believe this clue is a double definition.
'it's good' is the first definition.
(similar in meaning)
'be accurate' is the second definition.
(thesaurus)
'to' is the link.
(Other definitions for nice that I've seen before include "Fastidious" , "Lovely" , "French Mediterranean resort" , "Portuguese river, a centre for port" , "Charming" .)