What does the cryptic crossword clue "Remained sober as instructed (6)" mean?

The definition is "Remained". The wordplay uses a homophone (sounds like). sounds like (“as instructed”): ‘staid’=”sober” The answer is STAYED.

Remained sober as instructed (6)

Guardian Cryptic #29466 | 20 Down | 2024-08-20 flower