Saviour about to meet second copper with hesitation (7)
I believe the answer is:
rescuer
'saviour' is the definition.
(I know that saviour can be written as rescuer)
'to meet second copper with hesitation' is the wordplay.
'to meet second' becomes 'res' (I can't justify this - if you can you should give a lot more credence to this answer).
'copper' becomes 'cu' (chemical symbol).
'with' says to put letters next to each other.
'hesitation' becomes 'er' (sound used when hesitating).
'res'+'cu'+'er'='RESCUER'
'about' acts as a link.
Can you help me to learn more?
(Other definitions for rescuer that I've seen before include "Saviour" , "One who saves from a dangerous situation" , "One who saves someone" , "One who saves another from peril" , "One who delivers" .)