The current series (6)
I believe the answer is:
stream
This clue is a double definition.
'the current' is the first definition.
('stream' can be a synonym of 'current')
'series' is the second definition.
(stream is a kind of series)
(Other definitions for stream that I've seen before include "schoolchildren grouped together" , "flower" , "Running liquid" , "class division" , "divide pupils into ability groups" .)