CCCWC March competition voters’ comments on Clue no. 11

A clue to EXCALIBUR.
3 comments refer to this clue (from 3 competitors, 0 others)

Here is the text

Comments on the clue

1.	This is more a general knowledge question than a cryptic clue
2.	Seems rather vague to me.
3.	I'd like to have seen some supporting wordplay to provide me with letters