What does the cryptic crossword clue "Secure? To some extent, quite the reverse! (6)" mean?

The definition is "Secure?". The wordplay uses a hidden word. Hidden in "secure? to some extent, quiTE THE Reverse!" The answer is TETHER.

Secure? To some extent, quite the reverse! (6)

Guardian Cryptic #29490 | 23 Down | 2024-09-17 flower