Being rich, we fuss about £2 (4-2-2)
I believe the answer is:
well-to-do
'being rich' is the definition.
(I've seen this before)
'we fuss about ps2' is the wordplay.
'fuss' becomes 'todo' (both can mean a commotion).
'about' is a charade indicator (letters next to each other).
'psl' becomes 'll' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'todo' after 'll' is 'lltodo'.
'we'+'lltodo'='WELL-TO-DO'
(Other definitions for well-to-do that I've seen before include "'Prosperous, wealthy (4-2-2)'" , "Affluent" , "Financially comfortable" , "Quite wealthy" , "Rich; old towel (anag.)" .)