Possible Clues:

• Brown all over it's a knitted bear
• America must cut pollution to keep up
• With the editor it's upheld in court otherwise it'll give support
• Mark covering American bear
• Keep up! Mark supports American uprising
• Continually hold us up to the mark
• Support American army when environment is evil
• Carry on suits an eccentric
• Keep going; nourish
• Stigma inhibiting American support