Charms soldier wrapped in coats (6)

'charms' is the definition.
Although both the answer and definition are plural nouns, I can't understand how one could define the other.

'soldier wrapped in coats' is the wordplay.
'soldier' becomes 'GI' (GI can mean a US soldier).
'wrapped in' means one lot of letters goes inside another.
'coats' becomes 'macs' (mac is a kind of coat).
'gi' placed into 'macs' is 'MAGICS'.