Controversial European aim (7)

I believe the answer is:

emotive

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'controversial' is the definition.
(I've seen this before)

'european aim' is the wordplay.
'european' becomes 'E' (abbreviation e.g. EU).
'aim' becomes 'motive' (I can't justify this - if you can you should give a lot more credence to this answer).
'e'+'motive'='EMOTIVE'

Can you help me to learn more?

(Other definitions for emotive that I've seen before include "Arousing much feeling" , "arousing passion" , "Causing strong feelings" , "Moving - controversial" , "Argumentative" .)

I've seen this clue in The Telegraph.

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