Related Clues:

• Does this cancel out the way in at the end?
• This will cancel out the barrier at last
• Invalid ate this?
• This will make nothing of what you've got to open at last
• By the age of ten one may contradict this (6)
• This will cancel it on the way in at last
• Have nothing to do with the sweet I swallowed
• This might cancel entrance by the north-east
• Reject something about the pudding I have already eaten
• This will make nothing of the entrance at last
• 'Make this invalid, ate it at last (6)'
• Agent upset over point in dispute
• Deny development from age 10
• Deny getting help to go up in estimation
• Issue a denial over duff I put away