Zombie Awareness Month (3)
I believe the answer is:
may
'zombie awareness month' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for may that I've seen before include "The Darling Buds of - (H. E. Bates)" , "Spring" , "The permissive month" , "maid" , "Month - tree" .)