Possible Clues:

• Knock-on-the-noggin consequence
• Forgetting when sick men can be incontinent
• Condition sometimes treated by hypnosis
• Seaman I find with loss of memory
• Clinical state of forgetfulness
• Is a name (anag.)
• Forgetting that the continent welcomes fighting men
• Missing memory
• Complaint not associated with elephants?
• Having no memory of men struggling in the continent