What does the cryptic crossword clue "Stop threat from criminal largely (3,3,4,4)" mean?

The wordplay uses an anagram. anagram of STOP + THREAT + FROM = FORTHEMOSTPART The answer is FORTHEMOSTPART.

Stop threat from criminal largely (3,3,4,4)

Daily Mail Cryptic #17272 | 1 Down | 2024-01-16 flower