clan member vs fellow member

clan member and fellow member both are nouns.

Word	Noun	Adjective	Verb	Adverb
clan member	Yes	No	No	No
fellow member	Yes	No	No	No

As nouns, fellow member is a hypernym of clan member; that is, fellow member is a word with a broader meaning than clan member:

clan member: a member of a clan
fellow member: one of the persons who compose a social group (especially individuals who have joined and participate in a group organization)

Other hypernyms of clan member include member.

clan member (noun)	fellow member (noun)
a member of a clan	one of the persons who compose a social group (especially individuals who have joined and participate in a group organization)