Breaches of the peace reportedly leading to sentence (6)
I believe the answer is:
phrase
'sentence' is the definition.
(I have seen 'partial sentence' mean 'phrase' so perhaps 'sentence' could also mean 'phrase')
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for phrase that I've seen before include "Word (in a particular way)" , "Set of words for sherpa" , "Words for a seraph" , "Seraph (anag.)" , "Short, coherent group of words" .)