Alluring witchcraft concealing trap (8)
I believe the answer is:
magnetic
'alluring' is the definition.
(I've seen this before)
'witchcraft concealing trap' is the wordplay.
'witchcraft' becomes 'magic' (I've seen this before).
'concealing' is an insertion indicator.
'trap' becomes 'net' (net is a kind of trap).
'magic' placed around 'net' is 'MAGNETIC'.
(Other definitions for magnetic that I've seen before include "Having the power to attract" , "Able to attract metal, or charismatic" , "What's attractive" , "Attracting iron or steel" , "Having the property of attracting iron" .)