What does the cryptic crossword clue "Line and wriggly worm (7)" mean?

The definition is "worm". The wordplay uses an anagram. anagram of LINE + AND = ANNELID; definition: "worm" The answer is ANNELID.

Line and wriggly worm (7)

Guardian Cryptic #29088 | 23 Across | 2023-06-05 flower