What does the cryptic crossword clue "A fashionable area might – just (7)" mean?

The wordplay uses a charade (building blocks). MAY (synonym="‘might’") + FAIR (synonym="‘just’") = MAYFAIR The answer is MAYFAIR.

A fashionable area might – just (7)

Guardian Cryptic #29357 | 9 Across | 2024-04-15 flower