Capone carrying weapons caused consternation (7)
I believe the answer is:
alarmed
'caused consternation' is the definition.
The answer and definition can be both to do with communicating as well as being past participle verbs.
Maybe they are linked in a way I don't understand?
'capone carrying weapons' is the wordplay.
'capone' becomes 'Al' (gangster Al Capone).
'carrying weapons' becomes 'armed' (someone carrying a weapon is armed).
'al'+'armed'='ALARMED'
Can you help me to learn more?
(Other definitions for alarmed that I've seen before include "Fear-stricken" , "like Icarus as wax melted?" , "Frightened, startled" , "Experiencing a sudden sense of danger" , "Filled with apprehension" .)