It's fitting in Belgium and half of Romania to be more intelligent (8)

I believe the answer is:

brighter

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

(Other definitions for brighter that I've seen before include "Emitting more light" , "More sunny" , "Cleverer" , "More brilliant" , "Sunnier or smarter" .)

I've seen this clue in the Irish Times.

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