What does the cryptic crossword clue "Haunt frantic bosses (6)" mean?

The definition is "Haunt". The wordplay uses an anagram. anagram of BOSSES = OBSESS; definition: "Haunt" The answer is OBSESS.

Haunt frantic bosses (6)

Daily Mail Cryptic #16918 | 13 Across | 2022-09-06 flower