Crossword Genius

Special United Nations intelligence upset European Union (6)

Ross

I believe the answer is:

unique

'special' is the definition.
(thesaurus)

'united nations intelligence upset european union' is the wordplay.
'united nations' becomes 'UN' (abbreviation).
'intelligence' becomes 'IQ' (short for intelligence quotient).
'upset' is a reversal indicator.
'european union' becomes 'eu'.
'eu' reversed gives 'ue'.
'un'+'iq'+'ue'='UNIQUE'

(Other definitions for unique that I've seen before include "Radically distinctive and without equal" , "Single" , "incomparable" , "Singular, without equal" , "it's most unusual" .)

I've seen this clue in the Sydney Morning Herald.
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