Lucky charm, amulet (8)
I believe the answer is:
talisman
This clue is a double definition.
'lucky charm' is the first definition.
(I've seen this before)
'amulet' is the second definition.
(I know that amulet can be written as talisman)
(Other definitions for talisman that I've seen before include "Object believed to have magical powers" , "Charm thought to bring good luck" , "Magically protective object" , "Liam, Stan has charm." , "Object supposed to bring good luck" .)