Writer who adds fuel to the fire? (6)
I believe the answer is:
'writer who adds' is the definition.
'stoker' can be an answer for 'writer' (I've seen this before). I'm not certain of the remainder of the definition.
'fuel to the fire?' is the wordplay.
'fuel' becomes 'stoke' (I've seen this before).
'to the fire?' becomes 'r' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
Can you help me to learn more?
(Other definitions for stoker that I've seen before include "author of scary stories" , "who added fuel to the flames?" , "Worker on steam engine" , "Bram --, Irish novelist" , "He's fuelled < the legend of Dracula" .)