Painter papers around bottom right corner made ready (9)
I believe the answer is:
monetised
'made ready' is the definition.
('ready' can informally mean cash)
'painter papers around bottom right corner' is the wordplay.
'painter' becomes 'monet' (I've seen this before**).
'papers' becomes 'id' (identification papers).
'around' is an insertion indicator.
'bottom right corner' becomes 'se' (short for southeast, as in the SE corner of a map).
'id' going around 'se' is 'ised'.
'monet'+'ised'='MONETISED'
(Another definition for monetised that I've seen is " produced as legal tender".)