Possible Clues:

• It just takes one card to make the jerk acid
• Vinegary acid
• Type of acid derived from vinegar
• This acid is also known as ethanoic acid
• Sour expert has contract
• Rather sour
• Call about to turn sour
• Such as vinegar, excellent applied to nervous condition
• ___ acid (dressing ingredient)
• ___ acid (component of vinegar)