Crunchy crackers (5)
I believe the answer is:
nutty
This clue is a double definition.
'crunchy' is the first definition.
(I've seen this before)
'crackers' is the second definition.
(synonyms)
(Other definitions for nutty that I've seen before include "like vegetarian roast?" , "Crazy - slack?" , "Mad - with small pieces of coal" , "Like cobs, brazils, etc" , "Like brazils, say" .)