Judge troubles to secure prison time for such people (9)

I believe the answer is:

jailbirds

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'time for such people' is the definition.
I can't judge whether this defines the answer.

'judge troubles to secure prison' is the wordplay.
'judge' becomes 'J' (abbreviation for judge).
'troubles' becomes 'ails' (as verb).
'to secure' means one lot of letters goes inside another (inserted letters are secured inside).
'prison' becomes 'bird'.
'ails' placed around 'bird' is 'ailbirds'.
'j'+'ailbirds'='JAILBIRDS'

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I've seen this clue in The Guardian.

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