Train outside of Eastbourne carrying coin (7)
I believe the answer is:
'train' is the definition.
'outside of eastbourne carrying coin' is the wordplay.
'outside of' says to hollow out the word (remove centre letters).
'carrying' means one lot of letters goes inside another.
'coin' becomes 'ducat' (ducat is a kind of coin).
'eastbourne' with its middle taken out is 'ee'.
'ee' enclosing 'ducat' is 'EDUCATE'.
(Other definitions for educate that I've seen before include "Inform" , "Enlighten" , "Teach - instruct" , "Impart knowledge" , "what teacher should do, to be effective" .)