Two coppers in shot raised a pass (9)
I believe the answer is:
disappear
'pass' is the definition.
(I know that pass is a more specific form of the action disappear)
'two coppers in shot raised a' is the wordplay.
'two' shows that letters should be duplicated.
'coppers' becomes 'p'.
'in' indicates putting letters inside.
'shot' indicates anagramming the letters.
'p' doubled is 'pp'.
'raised'+'a'='raiseda'
'raiseda' is an anagram of 'disaear'.
'pp' put within 'disaear' is 'DISAPPEAR'.
(Other definitions for disappear that I've seen before include "Leave" , "Do a bunk" , "Fade out" , "Escape" , "Pass out of sight" .)