Possible Clues:

• Court judge upset supporting deputy speaker
• Largest speaker in a sound system, usually
• Lend setter, for example, audio equipment
• Sound of setter filling puzzle up for speaker
• Low-pitched noise from this replacement dog
• Speaker woe for us, unfortunately -- keeping Bercow initially
• Very low speaker to make an advance to solicitor holding bit of freehold
• Loudspeaker for reproducing lowest frequencies