Opinion; vista (4)
I believe the answer is:
view
I believe this clue is a double definition.
'opinion' is the first definition.
(I know that opinion can be written as view)
'vista' is the second definition.
(I know that vista can be written as view)
(Other definitions for view that I've seen before include "Range or field of vision" , "Behold the scenery?" , "Survey - opinion" , "inspection" , "Regard" .)