Possible Clues:

• Point represented another way
• Belfast is located here
• One might set a thorn in this direction
• Bearing on the star's get-up
• The cartographer's upright
• Point out another way?
• Where there's neither anything southern nor the, a saint
• No threats (anag.)
• Nor, in short, is the rest of it 20 across
• Maybe another way to make a point