Crazy about eastern drink made from honey (4)
I believe the answer is:
mead
'drink made from honey' is the definition.
(I've seen this in another clue)
'crazy about eastern' is the wordplay.
'crazy' becomes 'mad' (synonyms).
'about' means one lot of letters goes inside another.
'eastern' becomes 'e'.
'mad' going around 'e' is 'MEAD'.
(Other definitions for mead that I've seen before include "Honeyed drink; a lea" , "Honey-based alcoholic drink" , "Honey drink; lea" , "Alcoholic drink of fermented honey and water of old" , "Drink made of fermented honey and water" .)