stagger head vs staggered head

stagger head and staggered head both are nouns.

Word	Noun	Adjective	Verb	Adverb
stagger head	Yes	No	No	No
staggered head	Yes	No	No	No

As nouns, stagger head and staggered head are synonyms defined as:

stagger head and staggered head: a headline with the top line flush left and succeeding lines indented to the right

Other synonyms of stagger head include drop line, dropline, stephead, stepped line.

stagger head (noun)	staggered head (noun)
a headline with the top line flush left and succeeding lines indented to the right	a headline with the top line flush left and succeeding lines indented to the right