Get flustered rating Bake Off challenge? (8)
I believe the answer is:
flapjack
'challenge?' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for flapjack that I've seen before include "Flat cake" , "Oatcake" , "American twenty four Ac" , "Delicacy made with oats and golden syrup" , "One must chew over that" .)