Votes against (3)
'votes against' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for nos that I've seen before include "Numbers (abbr.)" , "Issue back > numbers" , "rejections" , "they opposed" , "Numbers (abbreviation)" .)
'votes against' is the definition.
(as opposed to 'ayes')
This is all the clue.
(Other definitions for nays that I've seen before include "Those that oppose a motion in Parliament" , "Negative committee votes" , "Denials" , "Archaic noes, sound like horses" , "Archaic negatives" .)