Bloodcurdling as their eels being flipping skinned! (5)
I believe the answer is:
eerie
'bloodcurdling' is the definition.
(I've seen this before)
'their eels being flipping skinned' is the wordplay.
'EERIE' is hidden back-to-front in amongst the letters.
However, I am uncertain how this is indicated.
'as' acts as a link.
Can you help me to learn more?
(Other definitions for eerie that I've seen before include "Strange and disturbing" , "Spooky, macabre" , "Unnatural" , "Frighteningly odd" , "Uncannily strange" .)