Related Clues:

• Cloudy, not transparent
• It's a bit thick to get round Father at the head of the queue
• It's a bit thick to give work such a queer start
• It's a bit thick to get around to Father at the head of the queue
• Through anything like this it's unseen
• A bit thick, O Dad, to start 17 across this way
• In chess, when to swop a queen isn't clear
• Thick gloop? A question's in there
• 18 full stop a question mark's carried
• Unclear work on a question on English
• A question in work (English) is obscure
• Impenetrable composition leading to audience's discomfort
• Create further confusion as blues legend?
• Dense crop — a question of where to look
• Non-transparent