The most common and most likely answer to this crossword clue is the 9 letter word ZOOKEEPER
I've seen this crossword clue in The Times
Z
O
O
K
E
E
P
E
R
More clues leading to the result ZOOKEEPER
Buddy explains!
The straight part
We know that "Who displays captives without humanity?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case who displays captives without humanity? = zookeeper.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does ZOOKEEPER mean?
ZOOKEEPER noun- A person employed at a zoo to attend to the animals.