ward-heeler vs political leader

ward-heeler and political leader both are nouns.

Word	Noun	Adjective	Verb	Adverb
ward-heeler	Yes	No	No	No
political leader	Yes	No	No	No

As nouns, political leader is a hypernym of ward-heeler; that is, political leader is a word with a broader meaning than ward-heeler:

ward-heeler: a politician who belongs to a small clique that controls a political party for private rather than public ends
political leader: a person active in party politics

Other hypernyms of ward-heeler include pol, politician, politico.

ward-heeler (noun)	political leader (noun)
a politician who belongs to a small clique that controls a political party for private rather than public ends	a person active in party politics