Deduce (5)
I believe the answer is:
infer
'deduce' is the definition.
(I know that deduce can be written as infer)
This is the entire clue.
(Other definitions for infer that I've seen before include "Derive as a consequence" , "'Deduce, conclude (5)'" , "Deduce logically" , "Take or gather meaning from" , "Presume" .)