Still together (2,3,4,4)
I believe the answer is:
at the same time
I believe this clue is a double definition.
'still' is the first definition.
(thesaurus)
'together' is the second definition.
('at the same time' can be a synonym of 'together')
(Other definitions for at the same time that I've seen before include "synchronised" , "Notwithstanding" , "Simultaneously - nevertheless" , "Coincidentally - still - however" , "on the other hand" .)