Here at afternoon get-together in series (3,5,7)
I believe the answer is:
one after another
'series' is the definition.
The answer and definition are not the same part of speech.
'here at afternoon get-together' is the wordplay.
'here at afternoon' can be anagrammed to 'ONE AFTER ANOTHER'.
But, I'm not clear how this is indicated.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for one after another that I've seen before include "Many, in a series" , "in single file" .)