Could displaced migrant settle in such a dream world? (5-6-4)

I believe the answer is:

cloud-cuckoo-land

'such a dream world?' is the definition.
(term for fantasy or dreaming)

'could displaced migrant settle' is the wordplay.
'displaced' indicates anagramming the letters.
'migrant' becomes 'cuckoo' (bird which migrates).
'settle' becomes 'land'.
'could' is an anagram of 'cloud'.
'cloud'+'cuckoo'+'land'='CLOUD-CUCKOO-LAND'

'in' acts as a link.

I've seen this clue in The Times.

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