Possible Clues:

• Clues in, with ''off''
• Server's bread and butter
• Summits on top of 15 and 22 across
• Tout's stock-in-trade
• Many servicepeople work for them
• Things I give 10% for, no matter what (I had to work for my money)
• Waiter's income, partially
• Starts therapy in Polish sanatorium with a few words to the wise
• Bar jarful
• Sign on a jar at a bar