Appear, give the impression (4)
I believe the answer is:
seem
I believe this clue is a double definition.
'appear' is the first definition.
(I know that appear can be written as seem)
'give the impression' is the second definition.
(I've seen this in another clue)
(Other definitions for seem that I've seen before include "Appear, look" , "Appear, give impression of being" , "Appear to the eye" , "Come across as" .)