Alluring trap in spelling? (8)
I believe the answer is:
magnetic
'alluring' is the definition.
(I've seen this before)
'trap in spelling?' is the wordplay.
'trap' becomes 'net' (net is a kind of trap).
'in' indicates putting letters inside.
'spelling?' becomes 'magic' (use of spells).
'net' put inside 'magic' is 'MAGNETIC'.
(Other definitions for magnetic that I've seen before include "Having the property of attracting iron" , "Very attractive or alluring" , "What's attractive" , "Attracting iron or steel" , "Able to attract metal, or charismatic" .)