Club where wife is on the brink (5)
I believe the answer is:
wedge
'club' is the definition.
(wedge is a kind of club)
'wife is on the brink' is the wordplay.
'wife' becomes 'w'.
'is on' says to put letters next to each other.
'the brink' becomes 'edge' (I've seen this before).
'w'+'edge'='WEDGE'
'where' is the link.
(Other definitions for wedge that I've seen before include "Chunk" , "piece of cake" , "Device eg to keep door open" , "Splitting device" , "Tapered block" .)