Prospect of a paragon breaking through (5)
I believe the answer is:
vista
'prospect' is the definition.
(I know that prospect can be written as vista)
'a paragon breaking through' is the wordplay.
'a paragon' becomes 'st' (I can't explain this - if you can you should believe this answer much more).
'breaking' is an insertion indicator.
'through' becomes 'via' (via means going through).
'st' placed inside 'via' is 'VISTA'.
'of' is the link.
Can you help me to learn more?
(Other definitions for vista that I've seen before include "Pleasant view" , "Prospect, view" , "Pleasing view" , "Panoramic view" , "Perspective" .)