Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
mischief-maker is a noun meaning "someone who deliberately stirs up trouble". It carries one recorded sense.
someone who deliberately stirs up trouble
Definitions, synonyms and semantic relations for mischief-maker come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.