What does the cryptic crossword clue "Completely destroyed container, breaking off lid on still (8)" mean?

The wordplay uses acrostic. UP (synonym="‘container’") + ROOTED (synonym="‘still’, unmoving") = UPROOTED The answer is UPROOTED.

Completely destroyed container, breaking off lid on still (8)

Guardian Cryptic #29535 | 2 Down | 2024-11-08 flower