No option (7)
I believe the answer is:
refusal
I believe this clue is a double definition.
'no' is the first definition.
(thesaurus)
'option' is the second definition.
(I have seen 'An option' mean 'refusal' so perhaps 'option' could also mean 'refusal')
(Other definitions for refusal that I've seen before include "Possibly first option to buy" , "Horse's action in declining to jump a fence" , "opportunity to accept or decline" , "maybe never" , "Stop by fence" .)