What does the cryptic crossword clue "Setter unhappy when all becoming dimmer? (7)" mean?

The definition is "when all becoming dimmer?". The wordplay uses a charade (building blocks). SUN (synonym="Setter") + DOWN (synonym="unhappy") = SUNDOWN; definition: "when all becoming dimmer?" The answer is Sundown.

Setter unhappy when all becoming dimmer? (7)

Telegraph Prize Cryptic #3026 | 7 Across | 2019-10-20 flower

← Back to puzzle

Visit Telegraph's puzzle site →