Revolutionary new independent school is up and running (2,5)
I believe the answer is:
in train
'up and running' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'revolutionary new independent school' is the wordplay.
'revolutionary' says the letters should be written backwards.
'new' becomes 'n'.
'independent' becomes 'i'.
'school' becomes 'train' (training is a kind of schooling**).
'n'+'i'='ni'
'ni' backwards is 'in'.
'in'+'train'='IN TRAIN'
'is' is the link.
Can you help me to learn more?
(Other definitions for in train that I've seen before include "Under way" , "... properly directed" , "making progress" , "happening?" , "On the move" .)