Wood to sell back disco? (4,4)
I believe the answer is:
golf club
'wood' is the definition.
(wood is a type of golf club)
'sell back disco?' is the wordplay.
'sell' becomes 'flog' (I've seen this before).
'back' shows that the letters should be reversed in order.
'disco?' becomes 'club' (a disco is a type of night club).
'flog' written backwards gives 'golf'.
'golf'+'club'='GOLF-CLUB'
'to' is the link.
(Other definitions for golf club that I've seen before include "Sports association - sporting equipment" , "E.g. wood or iron" , "Driver or wood, say" , "Wood, possibly" , "nineteenth hole" .)