Husband joining club in English city (4)
I believe the answer is:
bath
'english city' is the definition.
'husband joining club' is the wordplay.
'husband' becomes 'h'.
'joining' is a charade indicator (letters next to each other).
'club' becomes 'bat' (as in sporting equipment).
'h' put after 'bat' is 'BATH'.
'in' acts as a link.
(Other definitions for bath that I've seen before include "Somerset spa" , "(Container for) ablution" , "Tub for washing" , "Water container for washing" , "Large tub" .)