Delivers from evil duties outside old railway (9)

'delivers' is the definition.
The definition and answer can be both to do with contact as well as being verbs in their -s form.
Perhaps they are linked in a way I don't understand?

'evil duties outside old railway' is the wordplay.
'evil duties' becomes 'excises' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'outside' is an insertion indicator.
'old' becomes 'o' (abbreviation).
'railway' becomes 'r' (eg in Great Western Railway).
'o'+'r'='or'
'excises' enclosing 'or' is 'EXORCISES'.

'from' acts as a link.

Can you help me to learn more?