Attractive, but avoiding trap? Excellent (5)
I believe the answer is:
magic
'excellent' is the definition.
(magic can mean very good)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for magic that I've seen before include "Conjuring trick, legerdemain" , "Illusory feat" , "Fungus causing trips?" , "Wonderful" , "Marvellous" .)