Sacrifice bad English jewellery (8)
I believe the answer is:
offering
'sacrifice' is the definition.
(eg an offering to a god)
'bad english jewellery' is the wordplay.
'bad' becomes 'off' (I've seen this before).
'english' becomes 'e' (abbreviation).
'jewellery' becomes 'ring' (ring is a kind of jewellery).
'off'+'e'+'ring'='OFFERING'
(Other definitions for offering that I've seen before include "Contribution, sacrifice" , "Gift or contribution as tendered" , "making a bid" , "Presenting for acceptance or rejection" , "Religious sacrifice" .)