partisan vs advocator

partisan and advocator both are nouns.

Word	Noun	Adjective	Verb	Adverb
partisan	Yes	Yes	No	No
advocator	Yes	No	No	No

As nouns, advocator is a hypernym of partisan; that is, advocator is a word with a broader meaning than partisan:

Other hypernyms of partisan include advocate, exponent, proponent.

partisan (noun)	advocator (noun)
a pike with a long tapering double-edged blade with lateral projections; 16th and 17th centuries	a person who pleads for a cause or propounds an idea
a fervent and even militant proponent of something
an ardent and enthusiastic supporter of some person or activity

partisan (adjective)	advocator (adjective)
devoted to a cause or party