FA rules broken? No! (7)
I believe the answer is:
refusal
'no' is the definition.
(refusing is saying no)
'fa rules broken?' is the wordplay.
'broken?' indicates an anagram.
'fa'+'rules'='farules'
'farules' is an anagram of 'REFUSAL'.
(Other definitions for refusal that I've seen before include "Chance to decline" , "Negation" , "Turning-down; denial" , "regrets?" , "Declining of an offer" .)