Identify, to be precise (8)
I believe the answer is:
pinpoint
I believe this clue is a double definition.
'identify' is the first definition.
(thesaurus)
'precise' is the second definition.
(similar in meaning)
'to be' acts as a link.
(Other definitions for pinpoint that I've seen before include "Tiny dot; locate exactly" , "Tiny dot; absolutely precise" , "Locate precisely" , "Define precisely" , "Put one's finger on" .)