Amazingly epic price drop (9)
I believe the answer is:
precipice
'drop' is the definition.
(I know that Precipice is a type of drop)
'amazingly epic price' is the wordplay.
'amazingly' indicates anagramming the letters.
'epic'+'price'='epicprice'
'epicprice' with letters rearranged gives 'PRECIPICE'.
(Other definitions for precipice that I've seen before include "Steep drop" , "Steep rock face" , "(Overhang of) steep cliff" , "High vertical cliff" , "Overhanging cliff or rock face" .)