Johnson & Johnson? (6)
I believe the answer is:
member
'johnson johnson?' is the definition.
The definition suggests a singular noun which matches the answer.
This is the entire clue.
Can you help me to learn more?
(Other definitions for member that I've seen before include "Limb - element - one in society" , "Part of body or one who belongs to a club" , "Part of the body - or of society group" , "someone with a club" , "One who has joined, eg, a society" .)