Possible Clues:

• Though it�s loud, unable to hear the word 'brave'
• Totally courageous
• Ignoring danger and peril
• Confident and loud, though unaware of it?
• Not a frightfully loud sound will get one totally deaf
• Indomitable female can't be listening!
• Brave female, like Van Gogh?
• Not afraid of Ecstasy in a much smaller amount
• Hardy's fine without audition?
• Intrepid fellow without hearing aid