What does the cryptic crossword clue "Chamber piece? Some Schubert etc obviously turns up here (5)" mean?

The wordplay uses a hidden word. A hidden reversal (turns up, in a down clue) in schuberT ETC Obviously The answer is OCTET.

Chamber piece? Some Schubert etc obviously turns up here (5)

Guardian Cryptic #29205 | 3 Down | 2023-10-19 flower