What prompts consumer demand (8)
I believe the answer is:
appetite
'demand' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for appetite that I've seen before include "Desire, inclination" , "thirst" , "Physical need for food" , "Physical desire as for food" , "Natural desire to satisfy a need" .)