No pro (4)
'no pro' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for anti that I've seen before include "Definitely not pro" , "Opposition member" , "Not favouring" , "Not in favor of" , "Policy's opponent" .)
(Other definitions for con that I've seen before include "Deception; disadvantage" , "Swindle, deception" , "Swindle after winning trust" , "Deceive; prisoner" , "Swindle or trick someone" .)