What does the cryptic crossword clue "Earliest aim in work gets to happen (11)" mean?

The definition is "happen". The wordplay uses an anagram. anagram of EARLIEST + AIM = MATERIALISE; definition: "happen" The answer is MATERIALISE.

Earliest aim in work gets to happen (11)

Daily Mail Cryptic #17081 | 12 Across | 2023-04-21 flower