Related Clues:

• Retail add-on
• Line on a sales receipt
• Dodgers might not pay it
• Employ skilled person to remove phosphorus
• Put forth, as force
• Employ pundit, regardless of pressure
• Something a state adds on to a sale
• Charge of cab not going all the way
• ___ yourself (put in effort)
• GST word
• Mid-April payment
• Civic duty, of a sort
• Make a great effort (mental or physical)
• Word after "property" or "estate"
• Every now and then Manx cat's tail begins to stretch