Sh___s from within, heading off ___laws (5)
I believe the answer is:
roars
'laws' is the definition.
The answer and definition can be both related to communication as well as being plural nouns.
Maybe you can see a link between them that I don't see?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for roars that I've seen before include "Calls like lion" , "Bellows, hollers" , "Bellows like a bull" , "'Deep, bellowing bursts of sound (5)'" , "Deep bellows" .)