Absurd indentations at the front of both ears (7)
I believe the answer is:
idiotic
'absurd' is the definition.
(I know that absurd can be written as idiotic)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for idiotic that I've seen before include "Inviting ridicule" , "Half witted" , "Stupid, foolish" , "Daft" , "Fatuous" .)