Every bovine animal skin in East End getting bleach (8)
I believe the answer is:
peroxide
'end getting bleach' is the definition.
'peroxide' can be an answer for 'bleach' (type of bleach). I'm not certain of the 'end getting' bit.
'every bovine animal skin in east' is the wordplay.
'every' becomes 'per' ('per' means 'for each' or 'for every').
'bovine' becomes 'ox' (ox is a kind of bovine).
'animal skin in' becomes 'id' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'east' becomes 'e' (abbreviation).
'per'+'ox'+'id'+'e'='PEROXIDE'
Can you help me to learn more?
(Other definitions for peroxide that I've seen before include "Chemical used to bleach hair" , "Powerful bleaching agent" , "See 8" , "Hair-bleaching fluid" , "Hair treatment" .)