Place of vision reportedly (4)
I believe the answer is:
site
'place' is the definition.
(I know that place can be written as site)
'vision reportedly' is the wordplay.
'vision' becomes 'sight' (synonyms).
'reportedly' shows a homophone (sound like).
'sight' sounds like 'SITE'.
'of' acts as a link.
(Other definitions for site that I've seen before include "Building land" , "Somewhere to build, perhaps" , "Locate - place" , "Building plot" , "Position for the building sounds visual" .)