Possible Clues:

• Under canvas one is meant to get charged
• Purpose in announcing strained relationship
• How one is meant to go camping with one on the end
• One is meant to start camping
• How mean to have one!
• Does it make you mean to have this?
• It's mean to start under canvas
• Failure to concentrate, dropping out at end
• Idea to find temporary home in the back of one's head
• End of hip strain announced