Satisfactory motive for a charity, for example (4,5)

I believe the answer is:

good cause

'a charity for example' is the definition.
(I know that charity is a type of good cause)

'satisfactory motive' is the wordplay.
'satisfactory' becomes 'good' (similar in meaning).
'motive' becomes 'cause' (I've seen this before).
'good'+'cause'='GOOD CAUSE'

'for' acts as a link.

I've seen this clue in The Irish Independent.

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