This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. one who defects.

n. One who defects, falls away, deserts, or secedes, as from a religious body, a political party, or the like.

n. a person who abandons their duty (as on a military post)

"Department has declared that the defector is a liar, and has discounted his report."

offender    wrongdoer   

deficient    deficit    deficiency    defect    defective    defection   

walk-in    renegade    draft dodger    deviationist    draft evader   

Hector    Rector    Schechter    collector    connecter    connector    detector    director    erector    hector   

pows    evaders    maseni    exarchate    string-pulling    adgrunt    adopters    parliamentarian    councilman    airspace