What does the cryptic crossword clue "Platform where you see some hero's trumpeted (7)" mean?

The definition is "Platform". The wordplay uses a hidden word. Hidden in "platform where you see some heRO'S TRUMpeted" The answer is ROSTRUM.

Platform where you see some hero's trumpeted (7)

Times Cryptic #28951 | 10 Across | 2024-06-24 flower