Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
cloak-and-dagger is an adjective meaning "conducted with or marked by hidden aims or methods". It carries one recorded sense.
conducted with or marked by hidden aims or methods
“clandestine intelligence operations”
“cloak-and-dagger activities behind enemy lines”
“hole-and-corner intrigue”
“secret missions”
“a secret agent”
“secret sales of arms”
“surreptitious mobilization of troops”
“an undercover investigation”
“underground resistance”
Definitions, synonyms and semantic relations for cloak-and-dagger come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.