Possible Clues:

• Politician under the influence of heroin, Ecstasy, marijuana...
• Notice about people of Westminster taking end from coarse fishermen's bait
• Pot source
• Versatile weed
• Drug giving rise to male member
• Sackcloth material, perhaps
• Drug with power to stop sound of cough
• Source of hashish
• It takes more than strings - rope - to pull him into Parliament
• Male representative with fibre