Got together to make the grade (8)
I believe the answer is:
gathered
'got together' is the definition.
('gather' can be a synonym of 'get together')
'make the grade' is the wordplay.
'make' indicates anagramming the letters.
'the'+'grade'='thegrade'
'thegrade' anagrammed gives 'GATHERED'.
'to' is the link.
(Other definitions for gathered that I've seen before include "Picked up" , "Concluded from evidence" , "Collected in one place and concluded" , "Drew" , "Surmised" .)