Course requiring permit to be getting on (7)
I believe the answer is:
passage
'course' is the definition.
(I've seen this before)
'permit to be getting on' is the wordplay.
'permit' becomes 'pass' (pass is a kind of permit).
'to be getting on' becomes 'age' (someone 'getting on' is getting older).
'pass'+'age'='PASSAGE'
'requiring' is the link.
(Other definitions for passage that I've seen before include "Sea/air journey" , "Section of musical or literary work" , "Excerpt" , "Piece of text or music" , "equestrian manoeuvre" .)