firebrand vs trouble maker

firebrand and trouble maker both are nouns.

Word	Noun	Adjective	Verb	Adverb
firebrand	Yes	No	No	No
trouble maker	Yes	No	No	No

As nouns, trouble maker is a hypernym of firebrand; that is, trouble maker is a word with a broader meaning than firebrand:

Other hypernyms of firebrand include bad hat, mischief-maker, troublemaker, troubler.

firebrand (noun)	trouble maker (noun)
someone who deliberately foments trouble	someone who deliberately stirs up trouble
a piece of wood that has been burned or is burning