Related, similar (7)
I believe the answer is:
kindred
I believe this clue is a double definition.
'related' is the first definition.
(similar in meaning)
'similar' is the second definition.
(similar in meaning)
(Other definitions for kindred that I've seen before include "These spirits have similar tastes" , "[TRIBAL]" , "Related by blood - having similar qualities" , "Relatively" , "Relatives" .)