What does the cryptic crossword clue "Host of bulletin has case strewn all over the place (10)" mean?

The wordplay uses an anagram. anagram of CASE + STREWN = NEWSCASTER The answer is NEWSCASTER.

Host of bulletin has case strewn all over the place (10)

Daily Mail Cryptic #17089 | 13 Across | 2023-05-03 flower