Prejudice (7)
(Other definitions for bias that I've seen before include "Favouritism" , "Large city in Florida" , "Inclination of prejudice" , "Prejudice for one side" , "Bigotry" .)
'prejudice' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for bigotry that I've seen before include "Intolerant prejudice" , "Blind zeal" , "Stubborn prejudice" , "Intolerance, prejudice on grounds of religion" .)