Related Clues:

• Dense, dim
• Blunt or unintelligent
• Not bright, poorly lit
• Lacking in light
• Thick, impenetrable
• 'Dense, slow (6)'
• Can't quite see the angle
• Not bright or distinct
• Dense, dim about the angle
• It's a bit thick that it's not acute
• At this point 27 across may follow to make one's views unacceptable
• So, with the tube, you do not get a cute, perhaps, combination
• A cute opposite
• It's a bit thick to have the beasts there over the East
• Around the North the seed is thick