What does the cryptic crossword clue "What drives Dracula and raging bulls to do? (9)" mean?

The wordplay uses an anagram. anagram of BULLS + TO + DO? = BLOODLUST The answer is BLOODLUST.

What drives Dracula and raging bulls to do? (9)

Daily Mail Cryptic #16939 | 15 Down | 2022-10-05 flower