Back with big snob swingers (7)
I believe the answer is:
gibbons
'swingers' is the definition.
Although both the answer and definition are plural nouns, I don't see how they can define each other.
'back with big snob' is the wordplay.
'big snob' anagrams to 'GIBBONS'.
However, I'm unsure how this is indicated.
Can you help me to learn more?
(Other definitions for gibbons that I've seen before include "Composer of sacred music" , "Tree-dwelling apes" , "Small apes with long arms" , "primates" .)