newsman vs adult male

newsman and adult male both are nouns.

Word	Noun	Adjective	Verb	Adverb
newsman	Yes	No	No	No
adult male	Yes	No	No	No

As nouns, adult male is a hypernym of newsman; that is, adult male is a word with a broader meaning than newsman:

Other hypernyms of newsman include man, newsperson, reporter.

newsman (noun)	adult male (noun)
a male person who investigates and reports or edits news stories	an adult person who is male (as opposed to a woman)