clubhead vs club head

clubhead and club head both are nouns.

Word	Noun	Adjective	Verb	Adverb
clubhead	Yes	No	No	No
club head	Yes	No	No	No

As nouns, clubhead and club head are synonyms defined as:

clubhead and club head: (golf) the head of the club which strikes the ball

Other synonyms of clubhead include club-head, golf-club head.

clubhead (noun)	club head (noun)
(golf) the head of the club which strikes the ball	(golf) the head of the club which strikes the ball