What does the cryptic crossword clue "Last moves by men on board need AGM changes (7)" mean?

The definition is "Last moves". The wordplay uses an anagram. anagram of NEED + AGM = ENDGAME; definition: "Last moves" The answer is ENDGAME.

Last moves by men on board need AGM changes (7)

Daily Mail Cryptic #16630 | 24 Across | 2021-07-29 flower