wire-puller vs hustler

wire-puller and hustler both are nouns.

Word	Noun	Adjective	Verb	Adverb
wire-puller	Yes	No	No	No
hustler	Yes	No	No	No

As nouns, hustler is a hypernym of wire-puller; that is, hustler is a word with a broader meaning than wire-puller:

wire-puller: one who uses secret influence (i.e. pulls wires or strings) for his own ends
hustler: a shrewd or unscrupulous person who knows how to circumvent difficulties

Other hypernyms of wire-puller include operator, wheeler dealer.

wire-puller (noun)	hustler (noun)
one who uses secret influence (i.e. pulls wires or strings) for his own ends	a shrewd or unscrupulous person who knows how to circumvent difficulties
	a prostitute who attracts customers by walking the streets