European crazy about cheese (4)
I believe the answer is:
edam
'cheese' is the definition.
(I know that Edam is a type of cheese)
'european crazy about' is the wordplay.
'european' becomes 'E' (abbreviation e.g. EU).
'crazy' becomes 'mad' (synonyms).
'about' is a reversal indicator.
'mad' reversed gives 'dam'.
'e'+'dam'='EDAM'
(Other definitions for edam that I've seen before include "Type of cheese" , "Kind of cheese" , "something to have with crackers" , "Spherical cheese" , "Dairy product" .)