Deposer

5 clues
Usurper
Coup participant
One performing a coup
Trial witness, of a sort
Lawyer at a pretrial interview
Similar answers:
Abruptdeparture
Adepartmentstoreandhe
Adeps
Adept
Adeptat
Adepter
Adeptly
Adeptness
Adepts
Aesopfableloser
Airdeparture
Alluvialdeposit
Aloser
Alsoservewho
Ammunitiondepot
Andindependence
Andysdeputy
Antidepress
Antidepressant
Antidepressants