Charming activity of bee? (8)
I believe the answer is:
Here is my best explanation:
This clue is a double definition.
'charming' is the first definition.
'activity of bee?' is the second definition.
(Other definitions for spelling that I've seen before include "Reciting the letters of a word", "Taking turn", "charming", "kind of bee?", "Competition to list the letters of a word", "Charming", "Giving a word's letters", "word's construction process", "Naming the letters" and "component of education".)