Horrified, shocked (6)
I believe the answer is:
aghast
This clue is a double definition.
'horrified' is the first definition.
(I know that horrified can be written as aghast)
'shocked' is the second definition.
(I know that shocked can be written as aghast)
(Other definitions for aghast that I've seen before include "Horror-stricken, filled with consternation" , "Amazed" , "Horror-struck" , "What's carried in bag has teacher" , "Horrified, filled iwth consternation" .)