Related Clues:

• Bug
• Sound quality
• The first 'H' of H.H.S.
• Complaint
• It's often toasted
• Disorder
• Minor malady
• Fitness
• ''To your ---''
• One's most valuable possession, perhaps
• Subject of many a toast
• Affliction
• Flu, e.g.
• It can be improved by 39-Across
• Ailment