compose vs composer

compose is not a noun while composer is a noun.

Word	Noun	Adjective	Verb	Adverb
compose	No	No	Yes	No
composer	Yes	No	No	No

compose (noun)	composer (noun)
	someone who composes music, usually as a profession

compose (verb)	composer (verb)
make up plans or basic details for
produce a literary work
write music
put together out of existing material
calm (someone, especially oneself); make quiet
form the substance of