What does the cryptic crossword clue "Screw again tethering criminal (9)" mean?

The definition is "Screw again". The wordplay uses an anagram. anagram of TETHERING = RETIGHTEN; definition: "Screw again" The answer is RETIGHTEN.

Screw again tethering criminal (9)

Independent Cryptic #12059 | 21 Across | 2025-06-03 flower