tallyman vs clerk

tallyman and clerk both are nouns.

Word	Noun	Adjective	Verb	Adverb
tallyman	Yes	No	No	No
clerk	Yes	No	Yes	No

As nouns, clerk is a hypernym of tallyman; that is, clerk is a word with a broader meaning than tallyman:

tallyman: one who keeps a tally of quantity or weight of goods produced or shipped or received
clerk: an employee who performs clerical work (e.g., keeps records or accounts)

tallyman (noun)	clerk (noun)
one who keeps a tally of quantity or weight of goods produced or shipped or received	an employee who performs clerical work (e.g., keeps records or accounts)
one who sells goods on the installment plan	a salesperson in a store

tallyman (verb)	clerk (verb)
	work as a clerk, as in the legal business