Some inclination to fish (5)
I believe the answer is:
angle
I believe this is a double definition.
'some inclination' is the first definition.
(thesaurus)
'fish' is the second definition.
('angle' can be a synonym of 'fish')
'to' acts as a link.
(Other definitions for angle that I've seen before include "Fish; viewpoint" , "Gradient" , "Try to catch" , "member of tribe" , "The space where two lines intersect" .)