Booked with prejudice (5)
I believe the answer is:
pride
'prejudice' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for pride that I've seen before include "Group of lions" , "Deadly sin (of lions?)" , "They say it comes before a fall" , "''. . . . . goeth before a fall''" , "Leonine family" .)