Club with hot tub (4)
I believe the answer is:
bath
'tub' is the definition.
(I've seen this before)
'club with hot' is the wordplay.
'club' becomes 'bat' (bat is a kind of club**).
'with' is a charade indicator (letters next to each other).
'hot' becomes 'h'.
'bat'+'h'='BATH'
(Other definitions for bath that I've seen before include "City of SW England" , "Home fixture (for City?)" , "City in Somerset noted for hot springs" , "Stopper for hole (don't let 8 through it!)" , "English spa founded by the Romans" .)