Burn fuel that draws well (8)
I believe the answer is:
charcoal
'draws well' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'burn fuel' is the wordplay.
'burn' becomes 'char' (charring is a kind of burning).
'fuel' becomes 'coal' (coal is a kind of fuel).
'char'+'coal'='CHARCOAL'
'that' acts as a link.
Can you help me to learn more?
(Other definitions for charcoal that I've seen before include "Black carbon produced by burning wood" , "Fuel - very dark grey" , "Form of carbon for drawing" , "Fuel eg for barbecue" , "Stick of black carbon material used for drawing" .)