1 starting situation, fact, idea to develop from (5)
5 amusing and enjoyable (3)
6 earned money from work, investments, or business (6)
9 to work out to become stronger and healthier (8)
10 person who writes books, plays, poems, etc. (6)
12 place where you can order, buy and eat a meal (10)
13 at the most important or easiest (beginner) level (5)
14 to be working or being used (7)
16 physical harm that is done to something (6)
18 that can help with a particular task (6)
19 essential supply of something (8)