What does the cryptic crossword clue "Nose is running for ages (4)" mean?

The definition is "ages". The wordplay uses an anagram. anagram of NOSE ("Nose") [anagram: "running"] = EONS; definition: "ages" The answer is EONS.

Nose is running for ages (4)

Times Cryptic #29161 | 19 Across | 2025-02-24 flower