Adds to the family (6)
I believe the answer is:
adopts
'adds to the family' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for adopts that I've seen before include "Takes or uses as one's own" , "Assumes (an attitude)" , "Takes as one's own, say child" , "Takes as heir or representative" , "Approves or accepts, a motion or accounts" .)