What does the cryptic crossword clue "Series of notes Tudor emissary kept hidden (2,2,2)" mean?

The definition is "Series of notes". The wordplay uses a hidden word. Hidden in "series of notes tuDOR EMIssary kept hidden" The answer is DOREMI.

Series of notes Tudor emissary kept hidden (2,2,2)

Guardian Cryptic #29107 | 7 Down | 2023-06-27 flower