What does the cryptic crossword clue "Jaws was back, with Bond’s boss replacing head of Spectre (3)" mean?

The definition is "Jaws". The wordplay uses acrostic. M (synonym=""Bond's boss"") + AW (synonym="s> M") = MAW; definition: "Jaws" The answer is MAW.

Jaws was back, with Bond’s boss replacing head of Spectre (3)

Guardian Cryptic #29186 | 2 Down | 2023-09-27 flower