clerk vs tally clerk

clerk and tally clerk both are nouns.

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

As nouns, tally clerk is a hyponym of clerk; that is, tally clerk is a word with a more specific, narrower meaning than clerk:

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

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

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