Be inclined to show bias (5)
I believe the answer is:
slant
I believe this clue is a triple definition!
'be' is the first definition.
(I know this)
'inclined' is the second definition.
(thesaurus)
'to show' is a link.
'bias' is the third definition.
(I know this)
(Other definitions for slant that I've seen before include "Chance" , "Lean, point of view" , "Angle; make oblique" , "Lie obliquely" , "Slope - bias" .)