See eye to eye with a European? Not quite (5)
I believe the answer is:
agree
'see eye to eye with' is the definition.
(seeing eye to eye is agreeing with someone)
'a european? not quite' is the wordplay.
'european?' becomes 'Greek ' (Greece is in Europe).
'not quite' means to remove the last letter (most but not all of the word).
'greek' with its final letter taken away is 'gree'.
'a'+'gree'='AGREE'
(Other definitions for agree that I've seen before include "confess?" , "Go along with" , "chime?" , "'Assent, concur (5)'" , "share the same view" .)