place-kicker vs placekicker

place-kicker and placekicker both are nouns.

Word	Noun	Adjective	Verb	Adverb
place-kicker	Yes	No	No	No
placekicker	Yes	No	No	No

As nouns, place-kicker and placekicker are synonyms defined as:

place-kicker and placekicker: (football) a kicker who makes a place kick for a goal

place-kicker (noun)	placekicker (noun)
(football) a kicker who makes a place kick for a goal	(football) a kicker who makes a place kick for a goal