Breaches of First Amendment (5)
I believe the answer is:
rifts
'breaches' is the definition.
(I've seen this in another clue)
'first amendment' is the wordplay.
'amendment' is an anagram indicator.
'first' is an anagram of 'RIFTS'.
'of' is the link.
(Other definitions for rifts that I've seen before include "Splits" , "Clefts in earth, or disagreements" , "Schisms" , "Clefts or fissures." , "Breaks, severances" .)