What does the cryptic crossword clue "It follows forthwith — usually — but not all of it (4)" mean?

The definition is "It follows". The wordplay uses a hidden word. Hidden in "it follows forthwiTH — USually — but not all of it" The answer is THUS.

It follows forthwith — usually — but not all of it (4)

Times Cryptic #28851 | 21 Down | 2024-02-28 flower