Collectively, nothing more to say? (3,4)
I believe the answer is:
all told
'collectively' is the definition.
Both the answer and definition are adverbs. Maybe they are linked in a way I don't understand?
'nothing more to say?' is the wordplay.
'nothing more' becomes 'all' (I've seen this before).
'to say?' becomes 'told' (I can't explain this - if you can you should believe this answer much more).
'all'+'told'='ALL TOLD'
Can you help me to learn more?
(Other definitions for all told that I've seen before include "book reading's finished?" , "Everyone informed" , "Altogether" , "Nothing missed out" , "Taking everything into account" .)