newsreader vs news reader

newsreader and news reader both are nouns.

Word	Noun	Adjective	Verb	Adverb
newsreader	Yes	No	No	No
news reader	Yes	No	No	No

As nouns, newsreader and news reader are synonyms defined as:

newsreader and news reader: someone who reads out broadcast news bulletin

newsreader (noun)	news reader (noun)
someone who reads out broadcast news bulletin	someone who reads out broadcast news bulletin