Related Clues:

• How stupid to have got sick of having a lisp!
• Well, that's not with a lisp - that's just stupid
• Molasses-like
• Hicks wants to talk shop about release initially, agitated and very 2
• Stupid (as two short planks?)
• Dense - stupid
• Not flowing freely
• Like unabridged dictionaries
• Slow horse coming in second?
• With tongue swollen, reportedly ill, having such a head?
• But surely not all thieves are so unintelligent?
• Stupid; (of voice) husky
• Crowded hospital beset by parasite
• Term for unintelligent bumpkin
• Does this describe country bumpkin to a T?