Possible Clues:

• Having a slow regular rhythm
• Carefully considered — armed use (anag)
• Firm invested in drink? That's deliberate!
• Metered
• See a drum beaten with show of restraint
• Checked size of myself and a certain daughter
• Yours truly when terribly rude must be restrained
• This person, a certain Democrat, is moderate in speech maybe
• Like doses
• Regular in movement or carefully considered