Related Clues:

• Yellow liquid in blood
• Colourless part of the blood
• The watery part of the blood
• First and foremost, this was heavy, by the sound of it
• If M is over this, then you've been fooled
• It sounds heavy enough for Reg to have come back with it for the book-keeper
• Sounds rather heavy to have been in he van
• If I'd done this I'd have had little to do with it as a boss
• Sounds heavy enough to have been at the front
• That sounds as heavy as the end of 34 across
• By the sound of it, wait for what came first
• Heavy-sounding as 17 across
• Was in the van, but not lightly, by the sound of it
• To have been the leader sounds no light matter
• One did this in with the winner