Possible Clues:

• Notice manner of speech on drug dependence
• Inhabit the sort of speech for advertising
• Unhealthy need for supplement containing carbon
• Maybe this is inhabited
• Advertisement with choice of words is hard to give up
• Habit of PPS, say, to defend Conservative
• A stuttery way of speaking indicating a drug problem?
• It's habitually plus about a hundred
• I did act on (anag.)
• Monkey, so to speak