cleaner vs cleansing agent

cleaner and cleansing agent both are nouns.

Word	Noun	Adjective	Verb	Adverb
cleaner	Yes	No	No	No
cleansing agent	Yes	No	No	No

As nouns, cleaner and cleansing agent are synonyms defined as:

Other synonyms of cleaner include cleanser.

cleaner (noun)	cleansing agent (noun)
a preparation used in cleaning something	a preparation used in cleaning something
someone whose occupation is cleaning
the operator of dry-cleaning establishment