Deduce it's close (8)
I believe the answer is:
conclude
This clue is a double definition.
'deduce' is the first definition.
(thesaurus)
'close' is the second definition.
(thesaurus)
'it's' is the link.
(Other definitions for conclude that I've seen before include "Finish - deduce" , "Decide - terminate" , "Bring or come to an end (8)" , "Finally decide" , "Reach an opinion based on reasoning" .)