Possible Clues:

• Continue to assert, maintain
• Maintain relatively little in the tin
• Growth is said to follow popular demand
• Might one maintain the little girl in the tin?
• Maintain a little one of 22 across in a tin (6)
• Refuse to give way
• Don't give in if it is is in there
• Demand contribution from twin sister
• Maintain is there
• One may maintain this during the present month