Rich club in charge (6)
I believe the answer is:
ironic
'rich' is the definition.
(I've seen this before)
'club in charge' is the wordplay.
'club' becomes 'iron' (type of golf club).
'in charge' becomes 'ic' (abbreviation for 'in charge').
'iron'+'ic'='IRONIC'
(Other definitions for ironic that I've seen before include "Perversely amusing" , "Type of situation where one is mocked by fate" , "Perversely humorous" , "Characterised by mildly sardonic wit" , "Perverse or sarcastic in expressing opinion (6)" .)