Surmise (5)
'surmise' is the definition.
(I know that surmise is a kind of guess)
This is all the clue.
(Other definitions for guess that I've seen before include "Hypothesis" , "Speculate" , "Divine - estimate" , "Conjecture - estimate" , "Surmise" .)
'surmise' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for opine that I've seen before include "Conjecture" , "judge" , "State one's held view" , "Consider" , "Express a point of view" .)
'surmise' is the definition.
(I know that surmise is a kind of infer)
This is the entire clue.
(Other definitions for infer that I've seen before include "'Deduce, conclude (5)'" , "Read between the line" , "Insinuate" , "Deduce (from evidence)" , "Work out" .)
'surmise' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for presume that I've seen before include "Suppose; take liberties" , "Take for granted" , "Suppose without proof" , "Take to be the case" , "Supreme (anag)" .)