Regard as a prospect (4)
I believe the answer is:
view
I believe this clue is a double definition.
'regard' is the first definition.
('view' can be a synonym of 'regard')
'a prospect' is the second definition.
('view' can be a synonym of 'prospect')
'as' is the link.
(Other definitions for view that I've seen before include "Watch TV, e.g." , "Behold the scenery?" , "The range of the eye" , "Perspective" , "Prospect - opinion" .)