Husband in club making a bit of money (4)
I believe the answer is:
baht
'a bit of money' is the definition.
'baht' can be an answer for 'money' (I've seen this before). I am not certain of the 'a bit of' bit.
'husband in club' is the wordplay.
'husband' becomes 'h' (abbreviation).
'in' means one lot of letters goes inside another.
'club' becomes 'bat' (as in sporting equipment).
'h' placed into 'bat' is 'BAHT'.
'making' is the link.
Can you help me to learn more?
(Other definitions for baht that I've seen before include "Thai currency unit" , "Currency of Thailand" , "18 across currency" , "In Thailand ready" , "Asian money" .)