What does the cryptic crossword clue "Start of Macron’s ethnocentrism (5)" mean?

The definition is "Start". The wordplay uses a hidden word. Hidden in "start of macrON’S EThnocentrism" The answer is ONSET.

Start of Macron’s ethnocentrism (5)

Guardian Cryptic #29467 | 12 Across | 2024-08-21 flower