practical joker vs troublemaker

practical joker and troublemaker both are nouns.

Word	Noun	Adjective	Verb	Adverb
practical joker	Yes	No	No	No
troublemaker	Yes	No	No	No

As nouns, troublemaker is a hypernym of practical joker; that is, troublemaker is a word with a broader meaning than practical joker:

Other hypernyms of practical joker include bad hat, mischief-maker, trouble maker, troubler.

practical joker (noun)	troublemaker (noun)
someone who plays practical jokes on others	someone who deliberately stirs up trouble