Family from Nelson possibly joining audience (9)
I believe the answer is:
household
'family' is the definition.
(synonyms)
'nelson possibly joining audience' is the wordplay.
'nelson possibly' becomes 'hold' (nelson is a type of hold in wrestling).
'joining' means one lot of letters go next to another.
'audience' becomes 'house' (house is a kind of audience).
'hold' after 'house' is 'HOUSEHOLD'.
'from' is the link.
(Other definitions for household that I've seen before include "Common" , "Group of people living together" , "Family as a unit" , "Social unit living together" , "establishment" .)