What does the cryptic crossword clue "Trendy state, 28 (4)" mean?

The wordplay uses a charade (building blocks). IN (synonym="trendy") + KY (synonym="Kentucky (state") = INKY The answer is INKY.

Trendy state, 28 (4)

Guardian Cryptic #29400 | 25 Down | 2024-06-04 flower