What does the cryptic crossword clue "Apes unsettled big snob (7)" mean?

The definition is "Apes". The wordplay uses an anagram. anagram of BIG + SNOB = GIBBONS; definition: "Apes" The answer is GIBBONS.

Apes unsettled big snob (7)

Daily Mail Cryptic #16975 | 13 Across | 2022-11-24 flower