Notice obsession making one very angry (8)
I believe the answer is:
seething
'making one very angry' is the definition.
(I've seen this before)
'notice obsession' is the wordplay.
'notice' becomes 'see' (I've seen this before).
'obsession' becomes 'thing' (I've seen this before).
'see'+'thing'='SEETHING'
(Other definitions for seething that I've seen before include "Bubbling, perhaps with rage" , "Having extreme and barely suppressed anger" , "making one very angry" , "Boiling" , "Furious" .)