Received and understood (8)
I believe this is a double definition.
'received' is the first definition.
(similar in meaning)
'understood' is the second definition.
(thesaurus)
'and' is the link.
(Other definitions for accepted that I've seen before include "Took what was offered, being conventional" , "Tolerated; believed to be correct" , "Welcomed" , "Established" , "such behaviour normal?" .)
(Other definitions for seen that I've seen before include "Sighted" , "Met - understood" , "Distinguished" , "Noticed" , "Perceived by sight" .)