Related Clues:
- Not-so-sharp sort
- Tube for a dummy on a couch?
- Point about learner being dunce
- He could be told, but he probably wouldn't understand
- ___ tube (TV nickname)
- Slow-on-the-uptake sort
- One who's slow on the uptake
- Clumsy character
- Dim type
- Not-so-bright sort
- Error on the Tube, perhaps?
- Anna moved on consistently to make an error
- Point made about learner being an idiot
- Missing open goal, say, in scoreless draw between British sides
- Charlie had an impact after switching ends