The fiery spirit of a warm-hearted supporter (6)

I believe the answer is:

arrack

I'm a little stuck... Click here to teach me more about this clue!

'the fiery spirit' is the definition.
'arrack' can be an answer for 'spirit'. I am unsure of the 'the fiery' bit.

'a warm-hearted supporter' is the wordplay.
'hearted' means to look at the middle letters.
'supporter' becomes 'rack' (I can't explain this - if you can you should believe this answer much more).
The centre of 'warm' is 'ar'.
'ar'+'rack'='ARRACK'

'of' is the link.

Can you help me to learn more?

(Other definitions for arrack that I've seen before include "Liquor" , "Coarse spirit" , "Alcoholic spirit" .)

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.