Stranger from France reorganised IKEA on return (8)

'stranger' is the definition.
(more strange or freaky)

'france reorganised ikea on return' is the wordplay.
'france' becomes 'fr' (abbreviation).
'reorganised' is an anagram indicator.
'on' becomes 're' ('on' can be mean 'with reference to').
'return' says the letters should be written backwards.
're' written backwards gives 'er'.
'ikea' is an anagram of 'eaki'.
'fr'+'eaki'+'er'='FREAKIER'

'from' acts as a link.