Possible Clues:

• Pronounced demand thus withdrawn?
• After month was first to admit intention and gave a talk
• Renounced
• Indeed one may say it at the top of one's voice
• One trapped by shellfish during exploit made speech
• With most of ship's floor line cracking, sea water spouted
• Read aloud revised medical edition
• Harangued eccentric medical journalist
• Renounced?