Train or coach (7)
I believe the answer is:
educate
I believe this clue is a double definition.
'train' is the first definition.
(synonyms)
'coach' is the second definition.
(thesaurus)
'or' is the link.
(Other definitions for educate that I've seen before include "Teach - school" , "Teach - instruct" , "Impart learning" , "Train, teach" , "School, train" .)