Detectives found work for a child refugee (9,6)

I believe the answer is:

displaced person

I'm a little stuck... Click here to teach me more about this clue!

'refugee' is the definition.
(displaced person is a kind of refugee)

'detectives found work for a child' is the wordplay.
'detectives' becomes 'dis' (Detective Inspectors, DIs).
'found work for' becomes 'placed' (I can't justify this - if you can you should believe this answer much more).
'a' becomes 'per' (eg 'one a day' means 'one per day').
'child' becomes 'son' (male child).
'dis'+'placed'+'per'+'son'='DISPLACED PERSON'

Can you help me to learn more?

(Another definition for displaced person that I've seen is " refugee".)

I've seen this clue in The Times and The Sunday Times.

Want a hint initially instead of a full solution? Install my app