What does the cryptic crossword clue "Pocket? Rue sort that's come apart (7)" mean?

The definition is "Pocket?". The wordplay uses an anagram. anagram of RUE + SORT = TROUSER; definition: "Pocket?" The answer is TROUSER.

Pocket? Rue sort that's come apart (7)

Daily Mail Cryptic #17360 | 27 Across | 2024-05-17 flower