Viewpoint right for sportsman (6)
I believe the answer is:
angler
'for sportsman' is the definition.
(I've seen this before)
'viewpoint right' is the wordplay.
'viewpoint' becomes 'angle' (angle is a kind of viewpoint).
'right' becomes 'r' (common abbreviation).
'angle'+'r'='ANGLER'
(Other definitions for angler that I've seen before include "Strait; -- of Lochalsh" , "Hook and line fisherman" , "One hoping for a catch" , "One proverbially exaggerating" , "I may do casting" .)