Break into a politician's address (6)
I believe the answer is:
heckle
'break' is the definition.
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for heckle that I've seen before include "Jeer abusively" , "Barrack speaker" , "Verbally interrupt performer" , "Shout from the audience" , "rudely interrupt" .)