Cruelty is a noun.
If I were giving a speech on animal cruelty then I would discuss how the animals are treated, what is really done to them, and end with saying . . . "if this isn't cruelty then what is?"
Anyone can give a 2 minute speech on animal cruelty. The speech could be about the uses of fur, animal testing, and the poaching of animals for their meat, skin, and fur.
Ambition and cruelty
part of speech
The part of speech for this particular word is a noun.
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
The part of speech for "explicit" is an adjective.
The part of speech for "twirl" is a verb.
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.