Not going with the current trend (8)
I believe the answer is:
upstream
'not going with the current trend' is the definition.
I can't tell whether this defines the answer.
'not going with the current' is the wordplay.
'not going with' becomes 'up' (I can't justify this - if you can you should give a lot more credence to this answer).
'the current' becomes 'stream' (synonyms).
'up'+'stream'='UPSTREAM'
Can you help me to learn more?
(Other definitions for upstream that I've seen before include "at an earlier stage in process" , "opposing current tendencies" , "away from estuary?" , "Against a river current" , "contraflow" .)