What does the cryptic crossword clue "Figure-hugging clothes fade briefly in autumn (8)" mean?

The wordplay uses a container (one word inside another). WIL (synonym="WIL") in TIGHT (synonym="‘figure-hugging’") = TWILIGHT The answer is TWILIGHT.

Figure-hugging clothes fade briefly in autumn (8)

Guardian Cryptic #29371 | 16 Down | 2024-05-01 flower