Fire up range and eat and drink (9)
I believe the answer is:
'fire' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'up range and eat and drink' is the wordplay.
'up' indicates an anagram (letters get chucked up).
'and' means one lot of letters go next to another.
'eat and drink' becomes 'dine' (I can't explain this - if you can you should believe this answer much more).
'range' with letters rearranged gives 'grena'.
Can you help me to learn more?
(Other definitions for grenadine that I've seen before include "West Indian" , "Sweet cordial" , "Pomegranate juice syrup" , "Pomegranate cordial" , "silk fabric" .)