Miser with a bill condemned generous practices (10)

I believe the answer is:

liberalism

'generous practices' is the definition.
(being liberal or generous)

'miser with a bill condemned' is the wordplay.
'with' means one lot of letters go next to another.
'condemned' indicates anagramming the letters.
'a'+'bill'='abill'
'miser' after 'abill' is 'abillmiser'.
'abillmiser' with letters rearranged gives 'LIBERALISM'.

I've seen this clue in The Times.

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