What does the cryptic crossword clue "Fine weather that came from Berlin (4,5)" mean?

The wordplay uses a charade (building blocks). BLUE (synonym="BLUE") + SKIES (synonym="SKIES") = BLUESKIES The answer is BLUESKIES.

Fine weather that came from Berlin (4,5)

Guardian Cryptic #29471 | 1 Across | 2024-08-26 flower